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Finding the Fourth Proportional to 61,553.92, 84,943.21 and 34,695.91

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Solution

The fourth proportional to 61,553.92, 84,943.21 and 34,695.91 is: 47,879.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,553.92 : 84,943.21 = 34,695.91 : x
  2. Step 2: Convert to fraction form
    61,553.92/84,943.21 = 34,695.91/x
  3. Step 3: Cross multiply
    61,553.92x = 84,943.21 × 34,695.91
  4. Step 4: Simplify right side
    61,553.92x = 2,947,181,969.27
  5. Step 5: Solve for x
    x = 2,947,181,969.27/61,553.92
  6. Step 6: Final answer
    x = 47,879.68

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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.