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Finding the Fourth Proportional to 62,868.75, 86,757.12 and 34,574.43

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Solution

The fourth proportional to 62,868.75, 86,757.12 and 34,574.43 is: 47,711.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,868.75 : 86,757.12 = 34,574.43 : x
  2. Step 2: Convert to fraction form
    62,868.75/86,757.12 = 34,574.43/x
  3. Step 3: Cross multiply
    62,868.75x = 86,757.12 × 34,574.43
  4. Step 4: Simplify right side
    62,868.75x = 2,999,577,972.44
  5. Step 5: Solve for x
    x = 2,999,577,972.44/62,868.75
  6. Step 6: Final answer
    x = 47,711.75

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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.