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Finding the Fourth Proportional to 9,198.31, 13,765.86 and 5,686.96

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Solution

The fourth proportional to 9,198.31, 13,765.86 and 5,686.96 is: 8,510.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,198.31 : 13,765.86 = 5,686.96 : x
  2. Step 2: Convert to fraction form
    9,198.31/13,765.86 = 5,686.96/x
  3. Step 3: Cross multiply
    9,198.31x = 13,765.86 × 5,686.96
  4. Step 4: Simplify right side
    9,198.31x = 78,285,895.19
  5. Step 5: Solve for x
    x = 78,285,895.19/9,198.31
  6. Step 6: Final answer
    x = 8,510.90

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