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Finding the Fourth Proportional to 3,725.76, 5,589.36 and 1,260.98

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Solution

The fourth proportional to 3,725.76, 5,589.36 and 1,260.98 is: 1,891.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,725.76 : 5,589.36 = 1,260.98 : x
  2. Step 2: Convert to fraction form
    3,725.76/5,589.36 = 1,260.98/x
  3. Step 3: Cross multiply
    3,725.76x = 5,589.36 × 1,260.98
  4. Step 4: Simplify right side
    3,725.76x = 7,048,071.17
  5. Step 5: Solve for x
    x = 7,048,071.17/3,725.76
  6. Step 6: Final answer
    x = 1,891.71

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