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Finding the Fourth Proportional to 18,570.18, 25,619.82 and 11,856.12

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Solution

The fourth proportional to 18,570.18, 25,619.82 and 11,856.12 is: 16,356.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,570.18 : 25,619.82 = 11,856.12 : x
  2. Step 2: Convert to fraction form
    18,570.18/25,619.82 = 11,856.12/x
  3. Step 3: Cross multiply
    18,570.18x = 25,619.82 × 11,856.12
  4. Step 4: Simplify right side
    18,570.18x = 303,751,660.30
  5. Step 5: Solve for x
    x = 303,751,660.30/18,570.18
  6. Step 6: Final answer
    x = 16,356.96

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