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Finding the Fourth Proportional to 62,551, 86,320.38 and 34,257.70

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Solution

The fourth proportional to 62,551, 86,320.38 and 34,257.70 is: 47,275.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,551 : 86,320.38 = 34,257.70 : x
  2. Step 2: Convert to fraction form
    62,551/86,320.38 = 34,257.70/x
  3. Step 3: Cross multiply
    62,551x = 86,320.38 × 34,257.70
  4. Step 4: Simplify right side
    62,551x = 2,957,137,681.93
  5. Step 5: Solve for x
    x = 2,957,137,681.93/62,551
  6. Step 6: Final answer
    x = 47,275.63

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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.