Find the missing term in the geometric sequence.

The answer is 15

Step-by-step explanation: 3r^2=208

208 divided by 2 = 16

16 divided by 2 = 4

Multiple 4 by 13 and you'll get 52 which is the missing term

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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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