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Finding the Fourth Proportional to 62,992.29, 86,929.49 and 34,311.87

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Solution

The fourth proportional to 62,992.29, 86,929.49 and 34,311.87 is: 47,350.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,992.29 : 86,929.49 = 34,311.87 : x
  2. Step 2: Convert to fraction form
    62,992.29/86,929.49 = 34,311.87/x
  3. Step 3: Cross multiply
    62,992.29x = 86,929.49 × 34,311.87
  4. Step 4: Simplify right side
    62,992.29x = 2,982,713,188.49
  5. Step 5: Solve for x
    x = 2,982,713,188.49/62,992.29
  6. Step 6: Final answer
    x = 47,350.45

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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.