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Finding the Fourth Proportional to 12,355.28, 18,527.31 and 5,331.97

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Solution

The fourth proportional to 12,355.28, 18,527.31 and 5,331.97 is: 7,995.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,355.28 : 18,527.31 = 5,331.97 : x
  2. Step 2: Convert to fraction form
    12,355.28/18,527.31 = 5,331.97/x
  3. Step 3: Cross multiply
    12,355.28x = 18,527.31 × 5,331.97
  4. Step 4: Simplify right side
    12,355.28x = 98,786,968.46
  5. Step 5: Solve for x
    x = 98,786,968.46/12,355.28
  6. Step 6: Final answer
    x = 7,995.53

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