Find the geometric mean of 20 and 40

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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answer is because 4×10=40

and 98×4= is 392

40,392

step-by-step explanation:

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