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Finding the Fourth Proportional to 57,863.88, 86,706.52 and 39,070.26

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Solution

The fourth proportional to 57,863.88, 86,706.52 and 39,070.26 is: 58,545.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,863.88 : 86,706.52 = 39,070.26 : x
  2. Step 2: Convert to fraction form
    57,863.88/86,706.52 = 39,070.26/x
  3. Step 3: Cross multiply
    57,863.88x = 86,706.52 × 39,070.26
  4. Step 4: Simplify right side
    57,863.88x = 3,387,646,182.42
  5. Step 5: Solve for x
    x = 3,387,646,182.42/57,863.88
  6. Step 6: Final answer
    x = 58,545.09

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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.