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Finding the Fourth Proportional to 18,415.80, 27,655.29 and 17,584.74

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Solution

The fourth proportional to 18,415.80, 27,655.29 and 17,584.74 is: 26,407.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.80 : 27,655.29 = 17,584.74 : x
  2. Step 2: Convert to fraction form
    18,415.80/27,655.29 = 17,584.74/x
  3. Step 3: Cross multiply
    18,415.80x = 27,655.29 × 17,584.74
  4. Step 4: Simplify right side
    18,415.80x = 486,311,084.27
  5. Step 5: Solve for x
    x = 486,311,084.27/18,415.80
  6. Step 6: Final answer
    x = 26,407.27

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