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Finding the Fourth Proportional to 13,188.60, 19,785.90 and 6,163.56

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Solution

The fourth proportional to 13,188.60, 19,785.90 and 6,163.56 is: 9,246.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.60 : 19,785.90 = 6,163.56 : x
  2. Step 2: Convert to fraction form
    13,188.60/19,785.90 = 6,163.56/x
  3. Step 3: Cross multiply
    13,188.60x = 19,785.90 × 6,163.56
  4. Step 4: Simplify right side
    13,188.60x = 121,951,581.80
  5. Step 5: Solve for x
    x = 121,951,581.80/13,188.60
  6. Step 6: Final answer
    x = 9,246.74

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