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Finding the Fourth Proportional to 61,249.29, 84,531.50 and 38,587.91

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Solution

The fourth proportional to 61,249.29, 84,531.50 and 38,587.91 is: 53,256.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,249.29 : 84,531.50 = 38,587.91 : x
  2. Step 2: Convert to fraction form
    61,249.29/84,531.50 = 38,587.91/x
  3. Step 3: Cross multiply
    61,249.29x = 84,531.50 × 38,587.91
  4. Step 4: Simplify right side
    61,249.29x = 3,261,893,298.57
  5. Step 5: Solve for x
    x = 3,261,893,298.57/61,249.29
  6. Step 6: Final answer
    x = 53,256.02

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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.