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Austinthemassive · Answer 1 · 2023-02-21T15:59:53+0000

This problem is about the rule of three, where we have the given ratio "1 inch wide to 4 inches tall", based on this ratio we can find the inches tall for 3 inches wide.

So, we just need to form an equation, where the given ratio is going to form a fraction, we must multiply the "3 inches of width".

$x=3in(width)\cdot\frac{4in(\text{tall)}}{1in(width)}$

Then, we multiply:

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Therefore, the frame must be 12 inches tall, if it has 3 inches of width.

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