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Finding the Fourth Proportional to 62,694.20, 86,518.10 and 34,400.10

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Solution

The fourth proportional to 62,694.20, 86,518.10 and 34,400.10 is: 47,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,694.20 : 86,518.10 = 34,400.10 : x
  2. Step 2: Convert to fraction form
    62,694.20/86,518.10 = 34,400.10/x
  3. Step 3: Cross multiply
    62,694.20x = 86,518.10 × 34,400.10
  4. Step 4: Simplify right side
    62,694.20x = 2,976,231,291.81
  5. Step 5: Solve for x
    x = 2,976,231,291.81/62,694.20
  6. Step 6: Final answer
    x = 47,472.20

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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.