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Finding the Fourth Proportional to 7,265.40, 10,892.70 and 3,982.20

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Solution

The fourth proportional to 7,265.40, 10,892.70 and 3,982.20 is: 5,970.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,265.40 : 10,892.70 = 3,982.20 : x
  2. Step 2: Convert to fraction form
    7,265.40/10,892.70 = 3,982.20/x
  3. Step 3: Cross multiply
    7,265.40x = 10,892.70 × 3,982.20
  4. Step 4: Simplify right side
    7,265.40x = 43,376,909.94
  5. Step 5: Solve for x
    x = 43,376,909.94/7,265.40
  6. Step 6: Final answer
    x = 5,970.34

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