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Finding the Fourth Proportional to 62,868.72, 86,757.11 and 34,574.41

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Solution

The fourth proportional to 62,868.72, 86,757.11 and 34,574.41 is: 47,711.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,868.72 : 86,757.11 = 34,574.41 : x
  2. Step 2: Convert to fraction form
    62,868.72/86,757.11 = 34,574.41/x
  3. Step 3: Cross multiply
    62,868.72x = 86,757.11 × 34,574.41
  4. Step 4: Simplify right side
    62,868.72x = 2,999,575,956.78
  5. Step 5: Solve for x
    x = 2,999,575,956.78/62,868.72
  6. Step 6: Final answer
    x = 47,711.74

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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.