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Finding the Fourth Proportional to 61,251.72, 84,531.57 and 34,031.08

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Solution

The fourth proportional to 61,251.72, 84,531.57 and 34,031.08 is: 46,965.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,251.72 : 84,531.57 = 34,031.08 : x
  2. Step 2: Convert to fraction form
    61,251.72/84,531.57 = 34,031.08/x
  3. Step 3: Cross multiply
    61,251.72x = 84,531.57 × 34,031.08
  4. Step 4: Simplify right side
    61,251.72x = 2,876,700,621.20
  5. Step 5: Solve for x
    x = 2,876,700,621.20/61,251.72
  6. Step 6: Final answer
    x = 46,965.22

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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.