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Finding the Fourth Proportional to 36,987.64, 55,476 and 13,608.64

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Solution

The fourth proportional to 36,987.64, 55,476 and 13,608.64 is: 20,410.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,987.64 : 55,476 = 13,608.64 : x
  2. Step 2: Convert to fraction form
    36,987.64/55,476 = 13,608.64/x
  3. Step 3: Cross multiply
    36,987.64x = 55,476 × 13,608.64
  4. Step 4: Simplify right side
    36,987.64x = 754,952,912.64
  5. Step 5: Solve for x
    x = 754,952,912.64/36,987.64
  6. Step 6: Final answer
    x = 20,410.95

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