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Finding the Fourth Proportional to 18,961.67, 28,443.17 and 7,114.24

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Solution

The fourth proportional to 18,961.67, 28,443.17 and 7,114.24 is: 10,671.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,961.67 : 28,443.17 = 7,114.24 : x
  2. Step 2: Convert to fraction form
    18,961.67/28,443.17 = 7,114.24/x
  3. Step 3: Cross multiply
    18,961.67x = 28,443.17 × 7,114.24
  4. Step 4: Simplify right side
    18,961.67x = 202,351,591.08
  5. Step 5: Solve for x
    x = 202,351,591.08/18,961.67
  6. Step 6: Final answer
    x = 10,671.61

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