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Finding the Fourth Proportional to 62,098.80, 85,650.12 and 39,418.08

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Solution

The fourth proportional to 62,098.80, 85,650.12 and 39,418.08 is: 54,367.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,098.80 : 85,650.12 = 39,418.08 : x
  2. Step 2: Convert to fraction form
    62,098.80/85,650.12 = 39,418.08/x
  3. Step 3: Cross multiply
    62,098.80x = 85,650.12 × 39,418.08
  4. Step 4: Simplify right side
    62,098.80x = 3,376,163,282.17
  5. Step 5: Solve for x
    x = 3,376,163,282.17/62,098.80
  6. Step 6: Final answer
    x = 54,367.61

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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.