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Finding the Fourth Proportional to 12,115.88, 18,173.94 and 3,795.56

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Solution

The fourth proportional to 12,115.88, 18,173.94 and 3,795.56 is: 5,693.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.88 : 18,173.94 = 3,795.56 : x
  2. Step 2: Convert to fraction form
    12,115.88/18,173.94 = 3,795.56/x
  3. Step 3: Cross multiply
    12,115.88x = 18,173.94 × 3,795.56
  4. Step 4: Simplify right side
    12,115.88x = 68,980,279.71
  5. Step 5: Solve for x
    x = 68,980,279.71/12,115.88
  6. Step 6: Final answer
    x = 5,693.38

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