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Finding the Fourth Proportional to 62,679.86, 86,497.17 and 34,388.18

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Solution

The fourth proportional to 62,679.86, 86,497.17 and 34,388.18 is: 47,455.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,679.86 : 86,497.17 = 34,388.18 : x
  2. Step 2: Convert to fraction form
    62,679.86/86,497.17 = 34,388.18/x
  3. Step 3: Cross multiply
    62,679.86x = 86,497.17 × 34,388.18
  4. Step 4: Simplify right side
    62,679.86x = 2,974,480,251.45
  5. Step 5: Solve for x
    x = 2,974,480,251.45/62,679.86
  6. Step 6: Final answer
    x = 47,455.12

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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.