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Finding the Fourth Proportional to 12,584.74, 18,879.82 and 3,819.42

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Solution

The fourth proportional to 12,584.74, 18,879.82 and 3,819.42 is: 5,729.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,584.74 : 18,879.82 = 3,819.42 : x
  2. Step 2: Convert to fraction form
    12,584.74/18,879.82 = 3,819.42/x
  3. Step 3: Cross multiply
    12,584.74x = 18,879.82 × 3,819.42
  4. Step 4: Simplify right side
    12,584.74x = 72,109,962.10
  5. Step 5: Solve for x
    x = 72,109,962.10/12,584.74
  6. Step 6: Final answer
    x = 5,729.95

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