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Finding the Fourth Proportional to 10,987.02, 16,480.26 and 3,195.90

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Solution

The fourth proportional to 10,987.02, 16,480.26 and 3,195.90 is: 4,793.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.02 : 16,480.26 = 3,195.90 : x
  2. Step 2: Convert to fraction form
    10,987.02/16,480.26 = 3,195.90/x
  3. Step 3: Cross multiply
    10,987.02x = 16,480.26 × 3,195.90
  4. Step 4: Simplify right side
    10,987.02x = 52,669,262.93
  5. Step 5: Solve for x
    x = 52,669,262.93/10,987.02
  6. Step 6: Final answer
    x = 4,793.77

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