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Finding the Fourth Proportional to 3,988.72, 5,985.24 and 3,843.28

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Solution

The fourth proportional to 3,988.72, 5,985.24 and 3,843.28 is: 5,767.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.72 : 5,985.24 = 3,843.28 : x
  2. Step 2: Convert to fraction form
    3,988.72/5,985.24 = 3,843.28/x
  3. Step 3: Cross multiply
    3,988.72x = 5,985.24 × 3,843.28
  4. Step 4: Simplify right side
    3,988.72x = 23,002,953.19
  5. Step 5: Solve for x
    x = 23,002,953.19/3,988.72
  6. Step 6: Final answer
    x = 5,767.00

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