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Finding the Fourth Proportional to 62,992.10, 86,929.10 and 34,697.78

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Solution

The fourth proportional to 62,992.10, 86,929.10 and 34,697.78 is: 47,882.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,992.10 : 86,929.10 = 34,697.78 : x
  2. Step 2: Convert to fraction form
    62,992.10/86,929.10 = 34,697.78/x
  3. Step 3: Cross multiply
    62,992.10x = 86,929.10 × 34,697.78
  4. Step 4: Simplify right side
    62,992.10x = 3,016,246,831.23
  5. Step 5: Solve for x
    x = 3,016,246,831.23/62,992.10
  6. Step 6: Final answer
    x = 47,882.94

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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.