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Finding the Fourth Proportional to 8,280, 11,426.40 and 4,554

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Solution

The fourth proportional to 8,280, 11,426.40 and 4,554 is: 6,284.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280 : 11,426.40 = 4,554 : x
  2. Step 2: Convert to fraction form
    8,280/11,426.40 = 4,554/x
  3. Step 3: Cross multiply
    8,280x = 11,426.40 × 4,554
  4. Step 4: Simplify right side
    8,280x = 52,035,825.60
  5. Step 5: Solve for x
    x = 52,035,825.60/8,280
  6. Step 6: Final answer
    x = 6,284.52

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