math

On a sunny day an office building casts a shadow that is 80 feet long. At the same time, a 5 foot person casts a 6 foot shadow. Determine the height of the office building to the nearest foot.

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  1. Let's set up a proportion.

    5/6 = x/80

    Cross multiply:

    6x = 400
    x = 400/6
    x = ?

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  2. 66.6

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  3. 24

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