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Finding the Fourth Proportional to 42,893.70, 59,179.11 and 25,891.47

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Solution

The fourth proportional to 42,893.70, 59,179.11 and 25,891.47 is: 35,721.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,893.70 : 59,179.11 = 25,891.47 : x
  2. Step 2: Convert to fraction form
    42,893.70/59,179.11 = 25,891.47/x
  3. Step 3: Cross multiply
    42,893.70x = 59,179.11 × 25,891.47
  4. Step 4: Simplify right side
    42,893.70x = 1,532,234,151.19
  5. Step 5: Solve for x
    x = 1,532,234,151.19/42,893.70
  6. Step 6: Final answer
    x = 35,721.66

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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.