Fifteen dogs are three seventeen of the number of dogs certain living area. How many dogs in total are there in the living area?
If "\\frac{3}{17}=15dogs"
"\\frac{17}{17}=?\\:"
"Total\\:number\\:of\\:dogs=\\frac{17}{17}\\:\\times 15\\times \\frac{17}{3}=85"
Therefore, there are 85 dogs in total, in the living area.
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