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Finding the Fourth Proportional to 62,694.82, 86,542.94 and 42,560.70

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Solution

The fourth proportional to 62,694.82, 86,542.94 and 42,560.70 is: 58,750.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,694.82 : 86,542.94 = 42,560.70 : x
  2. Step 2: Convert to fraction form
    62,694.82/86,542.94 = 42,560.70/x
  3. Step 3: Cross multiply
    62,694.82x = 86,542.94 × 42,560.70
  4. Step 4: Simplify right side
    62,694.82x = 3,683,328,106.46
  5. Step 5: Solve for x
    x = 3,683,328,106.46/62,694.82
  6. Step 6: Final answer
    x = 58,750.12

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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.