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Finding the Fourth Proportional to 62,694.48, 86,515.68 and 34,399.68

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Solution

The fourth proportional to 62,694.48, 86,515.68 and 34,399.68 is: 47,470.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,694.48 : 86,515.68 = 34,399.68 : x
  2. Step 2: Convert to fraction form
    62,694.48/86,515.68 = 34,399.68/x
  3. Step 3: Cross multiply
    62,694.48x = 86,515.68 × 34,399.68
  4. Step 4: Simplify right side
    62,694.48x = 2,976,111,706.98
  5. Step 5: Solve for x
    x = 2,976,111,706.98/62,694.48
  6. Step 6: Final answer
    x = 47,470.08

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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.