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Finding the Fourth Proportional to 7,274.40, 10,935.90 and 6,205.20

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Solution

The fourth proportional to 7,274.40, 10,935.90 and 6,205.20 is: 9,328.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,274.40 : 10,935.90 = 6,205.20 : x
  2. Step 2: Convert to fraction form
    7,274.40/10,935.90 = 6,205.20/x
  3. Step 3: Cross multiply
    7,274.40x = 10,935.90 × 6,205.20
  4. Step 4: Simplify right side
    7,274.40x = 67,859,446.68
  5. Step 5: Solve for x
    x = 67,859,446.68/7,274.40
  6. Step 6: Final answer
    x = 9,328.53

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