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Finding the Fourth Proportional to 18,102.44, 27,147.88 and 16,921.76

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Solution

The fourth proportional to 18,102.44, 27,147.88 and 16,921.76 is: 25,377.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,102.44 : 27,147.88 = 16,921.76 : x
  2. Step 2: Convert to fraction form
    18,102.44/27,147.88 = 16,921.76/x
  3. Step 3: Cross multiply
    18,102.44x = 27,147.88 × 16,921.76
  4. Step 4: Simplify right side
    18,102.44x = 459,389,909.87
  5. Step 5: Solve for x
    x = 459,389,909.87/18,102.44
  6. Step 6: Final answer
    x = 25,377.24

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