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Math

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PROBLEM

Find the number that makes the ratio equivalent to 72:2472: 24.
\square :2
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STEP 1

1. We are given a ratio 72:24 72:24 .
2. We need to find a number x x such that the ratio x:2 x:2 is equivalent to 72:24 72:24 .
3. Ratios are equivalent if their cross-products are equal.

STEP 2

1. Simplify the given ratio.
2. Set up an equation for equivalent ratios.
3. Solve for the unknown number.

STEP 3

Simplify the given ratio 72:24 72:24 .
Divide both terms of the ratio by their greatest common divisor, which is 24 24 .
7224:2424=3:1 \frac{72}{24} : \frac{24}{24} = 3:1

STEP 4

Set up an equation for equivalent ratios.
We want x:2 x:2 to be equivalent to 3:1 3:1 .
x2=31 \frac{x}{2} = \frac{3}{1}

SOLUTION

Solve for x x .
Multiply both sides by 2 2 to isolate x x .
x=3×2 x = 3 \times 2 x=6 x = 6 The number that makes the ratio equivalent to 72:24 72:24 is:
6\boxed{6}

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