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Finding the Fourth Proportional to 60,961.92, 84,121.92 and 38,605.44

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Solution

The fourth proportional to 60,961.92, 84,121.92 and 38,605.44 is: 53,272.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,961.92 : 84,121.92 = 38,605.44 : x
  2. Step 2: Convert to fraction form
    60,961.92/84,121.92 = 38,605.44/x
  3. Step 3: Cross multiply
    60,961.92x = 84,121.92 × 38,605.44
  4. Step 4: Simplify right side
    60,961.92x = 3,247,563,735.24
  5. Step 5: Solve for x
    x = 3,247,563,735.24/60,961.92
  6. Step 6: Final answer
    x = 53,272.01

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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.