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Finding the Fourth Proportional to 7,046.55, 10,571.34 and 2,115.78

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Solution

The fourth proportional to 7,046.55, 10,571.34 and 2,115.78 is: 3,174.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,046.55 : 10,571.34 = 2,115.78 : x
  2. Step 2: Convert to fraction form
    7,046.55/10,571.34 = 2,115.78/x
  3. Step 3: Cross multiply
    7,046.55x = 10,571.34 × 2,115.78
  4. Step 4: Simplify right side
    7,046.55x = 22,366,629.75
  5. Step 5: Solve for x
    x = 22,366,629.75/7,046.55
  6. Step 6: Final answer
    x = 3,174.12

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