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Finding the Fourth Proportional to 13,842.75, 20,764.13 and 4,490.60

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Solution

The fourth proportional to 13,842.75, 20,764.13 and 4,490.60 is: 6,735.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.75 : 20,764.13 = 4,490.60 : x
  2. Step 2: Convert to fraction form
    13,842.75/20,764.13 = 4,490.60/x
  3. Step 3: Cross multiply
    13,842.75x = 20,764.13 × 4,490.60
  4. Step 4: Simplify right side
    13,842.75x = 93,243,275.90
  5. Step 5: Solve for x
    x = 93,243,275.90/13,842.75
  6. Step 6: Final answer
    x = 6,735.89

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