4/7 = 12/21
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x is ppnal to x by integrationn method
Proportion in design will relate to the size of the furniture chosen for a room for example. A castle with huge rooms will require much larger pieces of furniture than a small cottage for a couple.
If you cross-multiply and you obtain an equality, then the proportion is true. Example: 2/3 = 20/30 ? cross-multiply; 2 x 30 = 3 x 20 ? 60 = 60 Since we have an equality, the proportion is true.
A linear relationship whose graph does not pass through the origin: for example, the relation between temperatures on the Celsius and Fahrenheit scales.
For example, if you earn $10 in 3 hours, and you want to know how much you earn per hour, this is equivalent to solving the proportion: 10/3 = x/1