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Finding the Fourth Proportional to 3,481.99, 5,221.44 and 1,631.61

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Solution

The fourth proportional to 3,481.99, 5,221.44 and 1,631.61 is: 2,446.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.99 : 5,221.44 = 1,631.61 : x
  2. Step 2: Convert to fraction form
    3,481.99/5,221.44 = 1,631.61/x
  3. Step 3: Cross multiply
    3,481.99x = 5,221.44 × 1,631.61
  4. Step 4: Simplify right side
    3,481.99x = 8,519,327.61
  5. Step 5: Solve for x
    x = 8,519,327.61/3,481.99
  6. Step 6: Final answer
    x = 2,446.69

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