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Finding the Fourth Proportional to 14,814.78, 20,444.31 and 8,100.42

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Solution

The fourth proportional to 14,814.78, 20,444.31 and 8,100.42 is: 11,178.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,814.78 : 20,444.31 = 8,100.42 : x
  2. Step 2: Convert to fraction form
    14,814.78/20,444.31 = 8,100.42/x
  3. Step 3: Cross multiply
    14,814.78x = 20,444.31 × 8,100.42
  4. Step 4: Simplify right side
    14,814.78x = 165,607,497.61
  5. Step 5: Solve for x
    x = 165,607,497.61/14,814.78
  6. Step 6: Final answer
    x = 11,178.53

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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.