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Finding the Fourth Proportional to 61,531.74, 84,906.27 and 36,019.17

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Solution

The fourth proportional to 61,531.74, 84,906.27 and 36,019.17 is: 49,702.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,531.74 : 84,906.27 = 36,019.17 : x
  2. Step 2: Convert to fraction form
    61,531.74/84,906.27 = 36,019.17/x
  3. Step 3: Cross multiply
    61,531.74x = 84,906.27 × 36,019.17
  4. Step 4: Simplify right side
    61,531.74x = 3,058,253,373.20
  5. Step 5: Solve for x
    x = 3,058,253,373.20/61,531.74
  6. Step 6: Final answer
    x = 49,702.05

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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.