A scale model of a boat is 9 in. long. The boat's actual length is 60 ft.?

60 ft = 720 in

If 9 in represent 720 in

The Ratio is 9:720
= 1:80
 
60 ft = 720 in

If 9 in represent 720 in

The Ratio is 9:720
= 1:80
 
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