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Finding the Fourth Proportional to 6,613.32, 9,919.71 and 2,717.64

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Solution

The fourth proportional to 6,613.32, 9,919.71 and 2,717.64 is: 4,076.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.32 : 9,919.71 = 2,717.64 : x
  2. Step 2: Convert to fraction form
    6,613.32/9,919.71 = 2,717.64/x
  3. Step 3: Cross multiply
    6,613.32x = 9,919.71 × 2,717.64
  4. Step 4: Simplify right side
    6,613.32x = 26,958,200.68
  5. Step 5: Solve for x
    x = 26,958,200.68/6,613.32
  6. Step 6: Final answer
    x = 4,076.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.