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Finding the Fourth Proportional to 18,245.91, 27,381.18 and 7,151.25

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Solution

The fourth proportional to 18,245.91, 27,381.18 and 7,151.25 is: 10,731.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.91 : 27,381.18 = 7,151.25 : x
  2. Step 2: Convert to fraction form
    18,245.91/27,381.18 = 7,151.25/x
  3. Step 3: Cross multiply
    18,245.91x = 27,381.18 × 7,151.25
  4. Step 4: Simplify right side
    18,245.91x = 195,809,663.48
  5. Step 5: Solve for x
    x = 195,809,663.48/18,245.91
  6. Step 6: Final answer
    x = 10,731.70

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