I need help on algebra problem please! Can someone help figure this out?

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?

set up a proportion

(25 mm / 4 m) = (x mm / 9 m)

x = 56.25 mm
You set these numbers up in a proportion, with a as the variable for length on the blueprint:

Cross-multiply: 25x9=4a
Divide by 4: a=56.25

The length on the blueprint is 56.25 mm.

Hope that helped.
25mm ~ 4m

25/4 = x/9
6.25 = x/9
x = 56.25

Answer: 56.25mm
25 mm represent 4 m
? mm represent 9m

25 mm(9)/4=56.25 mm
25/4 = x/9

x = (9 * 25) / 4

x = 56.25 mm

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