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Finding the Fourth Proportional to 14,800.92, 20,424.67 and 8,086.78

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Solution

The fourth proportional to 14,800.92, 20,424.67 and 8,086.78 is: 11,159.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,800.92 : 20,424.67 = 8,086.78 : x
  2. Step 2: Convert to fraction form
    14,800.92/20,424.67 = 8,086.78/x
  3. Step 3: Cross multiply
    14,800.92x = 20,424.67 × 8,086.78
  4. Step 4: Simplify right side
    14,800.92x = 165,169,818.18
  5. Step 5: Solve for x
    x = 165,169,818.18/14,800.92
  6. Step 6: Final answer
    x = 11,159.43

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.