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Finding the Fourth Proportional to 62,931.16, 86,841.42 and 36,067.96

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Solution

The fourth proportional to 62,931.16, 86,841.42 and 36,067.96 is: 49,771.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,931.16 : 86,841.42 = 36,067.96 : x
  2. Step 2: Convert to fraction form
    62,931.16/86,841.42 = 36,067.96/x
  3. Step 3: Cross multiply
    62,931.16x = 86,841.42 × 36,067.96
  4. Step 4: Simplify right side
    62,931.16x = 3,132,192,862.90
  5. Step 5: Solve for x
    x = 3,132,192,862.90/62,931.16
  6. Step 6: Final answer
    x = 49,771.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.