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Finding the Fourth Proportional to 62,474.92, 86,243.54 and 39,844.28

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Solution

The fourth proportional to 62,474.92, 86,243.54 and 39,844.28 is: 55,003.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,474.92 : 86,243.54 = 39,844.28 : x
  2. Step 2: Convert to fraction form
    62,474.92/86,243.54 = 39,844.28/x
  3. Step 3: Cross multiply
    62,474.92x = 86,243.54 × 39,844.28
  4. Step 4: Simplify right side
    62,474.92x = 3,436,311,755.95
  5. Step 5: Solve for x
    x = 3,436,311,755.95/62,474.92
  6. Step 6: Final answer
    x = 55,003.06

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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.