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Finding the Fourth Proportional to 18,665.82, 27,998.56 and 7,569.86

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Solution

The fourth proportional to 18,665.82, 27,998.56 and 7,569.86 is: 11,354.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.82 : 27,998.56 = 7,569.86 : x
  2. Step 2: Convert to fraction form
    18,665.82/27,998.56 = 7,569.86/x
  3. Step 3: Cross multiply
    18,665.82x = 27,998.56 × 7,569.86
  4. Step 4: Simplify right side
    18,665.82x = 211,945,179.40
  5. Step 5: Solve for x
    x = 211,945,179.40/18,665.82
  6. Step 6: Final answer
    x = 11,354.72

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