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Finding the Fourth Proportional to 62,930.40, 86,834.02 and 36,067.76

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Solution

The fourth proportional to 62,930.40, 86,834.02 and 36,067.76 is: 49,767.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,930.40 : 86,834.02 = 36,067.76 : x
  2. Step 2: Convert to fraction form
    62,930.40/86,834.02 = 36,067.76/x
  3. Step 3: Cross multiply
    62,930.40x = 86,834.02 × 36,067.76
  4. Step 4: Simplify right side
    62,930.40x = 3,131,908,593.20
  5. Step 5: Solve for x
    x = 3,131,908,593.20/62,930.40
  6. Step 6: Final answer
    x = 49,767.82

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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.