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Finding the Fourth Proportional to 11,276.60, 16,890.60 and 9,332.60

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Solution

The fourth proportional to 11,276.60, 16,890.60 and 9,332.60 is: 13,978.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,276.60 : 16,890.60 = 9,332.60 : x
  2. Step 2: Convert to fraction form
    11,276.60/16,890.60 = 9,332.60/x
  3. Step 3: Cross multiply
    11,276.60x = 16,890.60 × 9,332.60
  4. Step 4: Simplify right side
    11,276.60x = 157,633,213.56
  5. Step 5: Solve for x
    x = 157,633,213.56/11,276.60
  6. Step 6: Final answer
    x = 13,978.79

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