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Finding the Fourth Proportional to 39,909.87, 59,878.98 and 17,721.27

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Solution

The fourth proportional to 39,909.87, 59,878.98 and 17,721.27 is: 26,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,909.87 : 59,878.98 = 17,721.27 : x
  2. Step 2: Convert to fraction form
    39,909.87/59,878.98 = 17,721.27/x
  3. Step 3: Cross multiply
    39,909.87x = 59,878.98 × 17,721.27
  4. Step 4: Simplify right side
    39,909.87x = 1,061,131,571.90
  5. Step 5: Solve for x
    x = 1,061,131,571.90/39,909.87
  6. Step 6: Final answer
    x = 26,588.20

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