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Finding the Fourth Proportional to 11,236.64, 16,838.90 and 8,251.67

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Solution

The fourth proportional to 11,236.64, 16,838.90 and 8,251.67 is: 12,365.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,236.64 : 16,838.90 = 8,251.67 : x
  2. Step 2: Convert to fraction form
    11,236.64/16,838.90 = 8,251.67/x
  3. Step 3: Cross multiply
    11,236.64x = 16,838.90 × 8,251.67
  4. Step 4: Simplify right side
    11,236.64x = 138,949,004.70
  5. Step 5: Solve for x
    x = 138,949,004.70/11,236.64
  6. Step 6: Final answer
    x = 12,365.71

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