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Finding the Fourth Proportional to 62,936.70, 86,864.30 and 36,079.43

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Solution

The fourth proportional to 62,936.70, 86,864.30 and 36,079.43 is: 49,796.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,936.70 : 86,864.30 = 36,079.43 : x
  2. Step 2: Convert to fraction form
    62,936.70/86,864.30 = 36,079.43/x
  3. Step 3: Cross multiply
    62,936.70x = 86,864.30 × 36,079.43
  4. Step 4: Simplify right side
    62,936.70x = 3,134,013,951.93
  5. Step 5: Solve for x
    x = 3,134,013,951.93/62,936.70
  6. Step 6: Final answer
    x = 49,796.29

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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.