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Finding the Fourth Proportional to 71,936.70, 107,917.38 and 22,015.56

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Solution

The fourth proportional to 71,936.70, 107,917.38 and 22,015.56 is: 33,027.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,936.70 : 107,917.38 = 22,015.56 : x
  2. Step 2: Convert to fraction form
    71,936.70/107,917.38 = 22,015.56/x
  3. Step 3: Cross multiply
    71,936.70x = 107,917.38 × 22,015.56
  4. Step 4: Simplify right side
    71,936.70x = 2,375,861,554.43
  5. Step 5: Solve for x
    x = 2,375,861,554.43/71,936.70
  6. Step 6: Final answer
    x = 33,027.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.