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Finding the Fourth Proportional to 62,643.88, 86,452.52 and 41,385.88

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Solution

The fourth proportional to 62,643.88, 86,452.52 and 41,385.88 is: 57,115.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,643.88 : 86,452.52 = 41,385.88 : x
  2. Step 2: Convert to fraction form
    62,643.88/86,452.52 = 41,385.88/x
  3. Step 3: Cross multiply
    62,643.88x = 86,452.52 × 41,385.88
  4. Step 4: Simplify right side
    62,643.88x = 3,577,913,618.42
  5. Step 5: Solve for x
    x = 3,577,913,618.42/62,643.88
  6. Step 6: Final answer
    x = 57,115.13

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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.