\"\"

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The proportion is \"\".

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Apply cross product property: If \"\", then ad = bc.

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\"\"           (Cross products)

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

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Apply division property of equality: Divide each side by 8.

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\"\"

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\"\"                    (Cancel common terms)

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b = 3.75                   (Divide: \"\")\"\"

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The value of b = 3.75.