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Finding the Fourth Proportional to 45,881.92, 68,816.40 and 14,713.12

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Solution

The fourth proportional to 45,881.92, 68,816.40 and 14,713.12 is: 22,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,881.92 : 68,816.40 = 14,713.12 : x
  2. Step 2: Convert to fraction form
    45,881.92/68,816.40 = 14,713.12/x
  3. Step 3: Cross multiply
    45,881.92x = 68,816.40 × 14,713.12
  4. Step 4: Simplify right side
    45,881.92x = 1,012,503,951.17
  5. Step 5: Solve for x
    x = 1,012,503,951.17/45,881.92
  6. Step 6: Final answer
    x = 22,067.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.