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What is positive proportion and what is inverse proportion in sixth grade mathematics?
For two numbers with changing values, if the ratio of these two numbers is always the same, they are said to be proportional; If the product of these two numbers is always the same, it is said that these two numbers are inversely proportional.

Y=kx(x is proportional to y) y=k/x(x is inversely proportional to y), and k is a constant.