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Finding the Fourth Proportional to 18,535.46, 27,786.28 and 7,998.90

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Solution

The fourth proportional to 18,535.46, 27,786.28 and 7,998.90 is: 11,991.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,535.46 : 27,786.28 = 7,998.90 : x
  2. Step 2: Convert to fraction form
    18,535.46/27,786.28 = 7,998.90/x
  3. Step 3: Cross multiply
    18,535.46x = 27,786.28 × 7,998.90
  4. Step 4: Simplify right side
    18,535.46x = 222,259,675.09
  5. Step 5: Solve for x
    x = 222,259,675.09/18,535.46
  6. Step 6: Final answer
    x = 11,991.05

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