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An architect is designing a shopping mall and built a sale model replica of the mall. On the model, a circular fountain
is 20 inches tall and 22.5 inches in diameter. If the actual fountain is to be 8 feet tall, what is the diameter?
PLEASE SHOW SOLUTION.
Thank you.
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Use the proportion
= ,
where left side is the ratio of the model dimensions (in inches), while the right side is the ratio of corresponding actual dimensions (in feet).
From the proportion,
x = = 9.
Answer. The actual diameter of the fontain is 9 feet.
Solved.
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