$\"\"$

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The proportion is $\"\"$ .

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$\"\"$ (Write the proportion)

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$\"\"$ (Cross products property)

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$\"\"$ (Multiply: $\"\"$ )

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$\"\"$ (Divide each side by 9)

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$\"\"$ (Cancel common terms)

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$\"\"$ (Divide: $\"\"$ ) $\"\"$

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The solution is $\"\"$ .