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Finding the Fourth Proportional to 42,869.04, 64,279.52 and 29,375.44

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Solution

The fourth proportional to 42,869.04, 64,279.52 and 29,375.44 is: 44,046.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,869.04 : 64,279.52 = 29,375.44 : x
  2. Step 2: Convert to fraction form
    42,869.04/64,279.52 = 29,375.44/x
  3. Step 3: Cross multiply
    42,869.04x = 64,279.52 × 29,375.44
  4. Step 4: Simplify right side
    42,869.04x = 1,888,239,182.99
  5. Step 5: Solve for x
    x = 1,888,239,182.99/42,869.04
  6. Step 6: Final answer
    x = 44,046.69

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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.