The diameter of the moon is approximately one fourth of the diameter of the earth. Find  the ratio of their surface areas.

Explanation

To find the ratio of the surface areas of the Moon and the Earth, we can follow these steps:

### Step 1: Define the diameters
Let the diameter of the Earth be \( d_2 \) and the diameter of the Moon be \( d_1 \). According to the problem, the diameter of the Moon is one fourth of the diameter of the Earth:
\[ d_1 = \frac{1}{4} d_2 \]

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