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Finding the Fourth Proportional to 67,922.76, 101,874.24 and 18,005.88

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Solution

The fourth proportional to 67,922.76, 101,874.24 and 18,005.88 is: 27,006.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,922.76 : 101,874.24 = 18,005.88 : x
  2. Step 2: Convert to fraction form
    67,922.76/101,874.24 = 18,005.88/x
  3. Step 3: Cross multiply
    67,922.76x = 101,874.24 × 18,005.88
  4. Step 4: Simplify right side
    67,922.76x = 1,834,335,340.53
  5. Step 5: Solve for x
    x = 1,834,335,340.53/67,922.76
  6. Step 6: Final answer
    x = 27,006.20

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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.