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Finding the Fourth Proportional to 6,613.92, 9,913.32 and 2,713.50

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Solution

The fourth proportional to 6,613.92, 9,913.32 and 2,713.50 is: 4,067.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613.92 : 9,913.32 = 2,713.50 : x
  2. Step 2: Convert to fraction form
    6,613.92/9,913.32 = 2,713.50/x
  3. Step 3: Cross multiply
    6,613.92x = 9,913.32 × 2,713.50
  4. Step 4: Simplify right side
    6,613.92x = 26,899,793.82
  5. Step 5: Solve for x
    x = 26,899,793.82/6,613.92
  6. Step 6: Final answer
    x = 4,067.15

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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.