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Finding the Fourth Proportional to 18,562.80, 27,865.80 and 11,175.60

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Solution

The fourth proportional to 18,562.80, 27,865.80 and 11,175.60 is: 16,776.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,562.80 : 27,865.80 = 11,175.60 : x
  2. Step 2: Convert to fraction form
    18,562.80/27,865.80 = 11,175.60/x
  3. Step 3: Cross multiply
    18,562.80x = 27,865.80 × 11,175.60
  4. Step 4: Simplify right side
    18,562.80x = 311,417,034.48
  5. Step 5: Solve for x
    x = 311,417,034.48/18,562.80
  6. Step 6: Final answer
    x = 16,776.40

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