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Finding the Fourth Proportional to 13,198.23, 18,213.84 and 7,230.15

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Solution

The fourth proportional to 13,198.23, 18,213.84 and 7,230.15 is: 9,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,198.23 : 18,213.84 = 7,230.15 : x
  2. Step 2: Convert to fraction form
    13,198.23/18,213.84 = 7,230.15/x
  3. Step 3: Cross multiply
    13,198.23x = 18,213.84 × 7,230.15
  4. Step 4: Simplify right side
    13,198.23x = 131,688,795.28
  5. Step 5: Solve for x
    x = 131,688,795.28/13,198.23
  6. Step 6: Final answer
    x = 9,977.76

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