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Finding the Fourth Proportional to 61,432.88, 92,150.16 and 21,992.48

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Solution

The fourth proportional to 61,432.88, 92,150.16 and 21,992.48 is: 32,989.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,432.88 : 92,150.16 = 21,992.48 : x
  2. Step 2: Convert to fraction form
    61,432.88/92,150.16 = 21,992.48/x
  3. Step 3: Cross multiply
    61,432.88x = 92,150.16 × 21,992.48
  4. Step 4: Simplify right side
    61,432.88x = 2,026,610,550.80
  5. Step 5: Solve for x
    x = 2,026,610,550.80/61,432.88
  6. Step 6: Final answer
    x = 32,989.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.