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Finding the Fourth Proportional to 8,772, 13,160.28 and 2,616

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Solution

The fourth proportional to 8,772, 13,160.28 and 2,616 is: 3,924.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772 : 13,160.28 = 2,616 : x
  2. Step 2: Convert to fraction form
    8,772/13,160.28 = 2,616/x
  3. Step 3: Cross multiply
    8,772x = 13,160.28 × 2,616
  4. Step 4: Simplify right side
    8,772x = 34,427,292.48
  5. Step 5: Solve for x
    x = 34,427,292.48/8,772
  6. Step 6: Final answer
    x = 3,924.68

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