How is measurement connected to ratio and proportion in real life?
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calendarEducator since 2011
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Measurement is related to ratio and proportion in real life in many ways. Here are three types of examples:
First consider conversions. In one example if you compare inches to feet you are looking at a 12:1 ratio and you could solve for the length in feet of an 18 inch model using a proportion 12/1 = 18/x
In my favorite example changes in temperature are proportional at the rate...
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calendarEducator since 2011
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1) A ratio is expressed as the relation between two real numbers. example would be 4:2 Take not that 2^2 : 4 is also a ratio, because 2^2 = 4.
2) Ratio can also be a proportion, because it is desrcibing the relation of two numbers. Example, what is the proportion of the width and height, if the ratio of the W to H is 3:2 the proportion would be the same thing.
3) Now when you talk about proportions, how do you know how long each side is? You have to MEASURE it, and thats their connection.
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