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Finding the Fourth Proportional to 62,402.70, 86,115.78 and 34,108.39

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Solution

The fourth proportional to 62,402.70, 86,115.78 and 34,108.39 is: 47,069.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,402.70 : 86,115.78 = 34,108.39 : x
  2. Step 2: Convert to fraction form
    62,402.70/86,115.78 = 34,108.39/x
  3. Step 3: Cross multiply
    62,402.70x = 86,115.78 × 34,108.39
  4. Step 4: Simplify right side
    62,402.70x = 2,937,270,589.13
  5. Step 5: Solve for x
    x = 2,937,270,589.13/62,402.70
  6. Step 6: Final answer
    x = 47,069.60

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1.5x scale

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.