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Finding the Fourth Proportional to 36,951.76, 55,428.51 and 11,991.88

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Solution

The fourth proportional to 36,951.76, 55,428.51 and 11,991.88 is: 17,988.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,951.76 : 55,428.51 = 11,991.88 : x
  2. Step 2: Convert to fraction form
    36,951.76/55,428.51 = 11,991.88/x
  3. Step 3: Cross multiply
    36,951.76x = 55,428.51 × 11,991.88
  4. Step 4: Simplify right side
    36,951.76x = 664,691,763.36
  5. Step 5: Solve for x
    x = 664,691,763.36/36,951.76
  6. Step 6: Final answer
    x = 17,988.10

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