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Finding the Fourth Proportional to 62,572.80, 86,352 and 34,278.56

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Solution

The fourth proportional to 62,572.80, 86,352 and 34,278.56 is: 47,305.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,572.80 : 86,352 = 34,278.56 : x
  2. Step 2: Convert to fraction form
    62,572.80/86,352 = 34,278.56/x
  3. Step 3: Cross multiply
    62,572.80x = 86,352 × 34,278.56
  4. Step 4: Simplify right side
    62,572.80x = 2,960,022,213.12
  5. Step 5: Solve for x
    x = 2,960,022,213.12/62,572.80
  6. Step 6: Final answer
    x = 47,305.25

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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.