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Finding the Fourth Proportional to 61,517.91, 92,289.20 and 22,078.11

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Solution

The fourth proportional to 61,517.91, 92,289.20 and 22,078.11 is: 33,121.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,517.91 : 92,289.20 = 22,078.11 : x
  2. Step 2: Convert to fraction form
    61,517.91/92,289.20 = 22,078.11/x
  3. Step 3: Cross multiply
    61,517.91x = 92,289.20 × 22,078.11
  4. Step 4: Simplify right side
    61,517.91x = 2,037,570,999.02
  5. Step 5: Solve for x
    x = 2,037,570,999.02/61,517.91
  6. Step 6: Final answer
    x = 33,121.59

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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.