若x:y:z=2:3:4,且x+y+z=18 则x y z的值分别为__________________
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若x:y:z=2:3:4,且x+y+z=18 则x y z的值分别为_4,6,8_____.
18*(2/9)=4
18*(3/9)=6
18*(4/9)=8
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