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Finding the Fourth Proportional to 27,577.08, 41,358.24 and 11,991

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Solution

The fourth proportional to 27,577.08, 41,358.24 and 11,991 is: 17,983.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,577.08 : 41,358.24 = 11,991 : x
  2. Step 2: Convert to fraction form
    27,577.08/41,358.24 = 11,991/x
  3. Step 3: Cross multiply
    27,577.08x = 41,358.24 × 11,991
  4. Step 4: Simplify right side
    27,577.08x = 495,926,655.84
  5. Step 5: Solve for x
    x = 495,926,655.84/27,577.08
  6. Step 6: Final answer
    x = 17,983.29

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