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Finding the Fourth Proportional to 69,434.73, 95,829.47 and 42,572.49

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Solution

The fourth proportional to 69,434.73, 95,829.47 and 42,572.49 is: 58,755.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,434.73 : 95,829.47 = 42,572.49 : x
  2. Step 2: Convert to fraction form
    69,434.73/95,829.47 = 42,572.49/x
  3. Step 3: Cross multiply
    69,434.73x = 95,829.47 × 42,572.49
  4. Step 4: Simplify right side
    69,434.73x = 4,079,698,940.42
  5. Step 5: Solve for x
    x = 4,079,698,940.42/69,434.73
  6. Step 6: Final answer
    x = 58,755.88

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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.