Find the mean proportional between 48 and 12.

Explanation

To find the mean proportional between two numbers, we can use the formula:

If \( a \) and \( b \) are two numbers, the mean proportional \( x \) can be found using the relationship:
\[ \frac{a}{x} = \frac{x}{b} \]

In this case, we have \( a = 48 \) and \( b = 12 \).
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