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Finding the Fourth Proportional to 62,993.81, 86,929.96 and 36,134.61

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Solution

The fourth proportional to 62,993.81, 86,929.96 and 36,134.61 is: 49,864.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,993.81 : 86,929.96 = 36,134.61 : x
  2. Step 2: Convert to fraction form
    62,993.81/86,929.96 = 36,134.61/x
  3. Step 3: Cross multiply
    62,993.81x = 86,929.96 × 36,134.61
  4. Step 4: Simplify right side
    62,993.81x = 3,141,180,201.92
  5. Step 5: Solve for x
    x = 3,141,180,201.92/62,993.81
  6. Step 6: Final answer
    x = 49,864.90

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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.