SOLUTION: On the blueprint of a house, 25 millimeters represents 4 meters. The actual length of the living room is 9 meters. What is its length on the blueprint?

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Question 202686: On the blueprint of a house, 25 millimeters represents 4 meters. The actual length of the living room is 9 meters. What is its length on the blueprint?

Answer by jim_thompson5910(35256) About Me  (Show Source):
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Since 25 millimeters represents 4 meters and x millimeters represents 9 meters, These values form the proportion 25%2F4=x%2F9


25%2F4=x%2F9 Start with the given ratio


%2825%2F4%29%2A9=x Multiply both sides by 9


225%2F4=x Multiply


56.25=x Divide


x=56.25 Rearrange the equation



So the solution is x=56.25 which means that 56.25 mm represents 9 m