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Finding the Fourth Proportional to 17,218.67, 25,786.98 and 11,958.93

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Solution

The fourth proportional to 17,218.67, 25,786.98 and 11,958.93 is: 17,909.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,218.67 : 25,786.98 = 11,958.93 : x
  2. Step 2: Convert to fraction form
    17,218.67/25,786.98 = 11,958.93/x
  3. Step 3: Cross multiply
    17,218.67x = 25,786.98 × 11,958.93
  4. Step 4: Simplify right side
    17,218.67x = 308,384,688.73
  5. Step 5: Solve for x
    x = 308,384,688.73/17,218.67
  6. Step 6: Final answer
    x = 17,909.91

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