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Finding the Fourth Proportional to 14,750.78, 20,381.96 and 11,791.04

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Solution

The fourth proportional to 14,750.78, 20,381.96 and 11,791.04 is: 16,292.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,750.78 : 20,381.96 = 11,791.04 : x
  2. Step 2: Convert to fraction form
    14,750.78/20,381.96 = 11,791.04/x
  3. Step 3: Cross multiply
    14,750.78x = 20,381.96 × 11,791.04
  4. Step 4: Simplify right side
    14,750.78x = 240,324,433.21
  5. Step 5: Solve for x
    x = 240,324,433.21/14,750.78
  6. Step 6: Final answer
    x = 16,292.33

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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.