



 
Hi Hannah, First I need both sides of the scale factor to be in the same units and since there are 100 centimeters in a meter, 36 meters is 3600 centimeters. Hence the scale is 3600 centimeters to 1.5 centimeters. I would like both of these numbers to be integers and since $2 \times 1.5 = 3$ I am going to multiply both by 2 to get a scale of 7200 centimeters to 3 centimeters. Hence the scale factor is \[\frac{7200}{3} = \frac{2400}{1}.\] I hope this helps, 



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