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Finding the Fourth Proportional to 61,726.84, 92,587.20 and 21,747.82

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Solution

The fourth proportional to 61,726.84, 92,587.20 and 21,747.82 is: 32,620.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,726.84 : 92,587.20 = 21,747.82 : x
  2. Step 2: Convert to fraction form
    61,726.84/92,587.20 = 21,747.82/x
  3. Step 3: Cross multiply
    61,726.84x = 92,587.20 × 21,747.82
  4. Step 4: Simplify right side
    61,726.84x = 2,013,569,759.90
  5. Step 5: Solve for x
    x = 2,013,569,759.90/61,726.84
  6. Step 6: Final answer
    x = 32,620.65

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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.