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Finding the Fourth Proportional to 71,963.28, 107,948.16 and 22,039.74

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Solution

The fourth proportional to 71,963.28, 107,948.16 and 22,039.74 is: 33,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,963.28 : 107,948.16 = 22,039.74 : x
  2. Step 2: Convert to fraction form
    71,963.28/107,948.16 = 22,039.74/x
  3. Step 3: Cross multiply
    71,963.28x = 107,948.16 × 22,039.74
  4. Step 4: Simplify right side
    71,963.28x = 2,379,149,379.88
  5. Step 5: Solve for x
    x = 2,379,149,379.88/71,963.28
  6. Step 6: Final answer
    x = 33,060.60

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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.