Evaluate 15.2% of `726 xx 12.8%` of 643.

Answer

To evaluate \( 15.2\% \) of \( 726 \) and \( 12.8\% \) of \( 643 \), and then multiply the results, we can follow these steps:

### Step 1: Calculate \( 15.2\% \) of \( 726 \)
To find \( 15.2\% \) of \( 726 \), we can use the formula:
\[ \text{Percentage} = \left( \frac{\text{Percentage Rate}}{100} \right) \times \text{Total} \]
Substituting the values:
\[ 15.2\% \text{ of } 726 = \left( \frac{15.2}{100} \right) \times 726 \]
Calculating this:
\[ = 0.152 \times 726 = 110.592 \]

### Step 2: Calculate \( 12.8\% \) of \( 643 \)
Now, we will find \( 12.8\% \) of \( 643 \) using the same formula:
\[ 12.8\% \text{ of } 643 = \left( \frac{12.8}{100} \right) \times 643 \]
Calculating this:
\[ = 0.128 \times 643 = 82.304 \]

### Step 3: Multiply the results from Step 1 and Step 2
Now, we multiply the results obtained in Steps 1 and 2:
\[ 110.592 \times 82.304 \]
Calculating this:
\[ = 9082.400768 \]

### Step 4: Rounding the result
Depending on the required precision, we can round this to two decimal places:
\[ = 9082.40 \]

### Final Answer
Thus, the final answer is:
\[ \text{The value of } 15.2\% \text{ of } 726 \text{ multiplied by } 12.8\% \text{ of } 643 \text{ is } 9082.40. \]

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