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Finding the Fourth Proportional to 5,300.82, 7,949.70 and 2,138.26

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Solution

The fourth proportional to 5,300.82, 7,949.70 and 2,138.26 is: 3,206.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,300.82 : 7,949.70 = 2,138.26 : x
  2. Step 2: Convert to fraction form
    5,300.82/7,949.70 = 2,138.26/x
  3. Step 3: Cross multiply
    5,300.82x = 7,949.70 × 2,138.26
  4. Step 4: Simplify right side
    5,300.82x = 16,998,525.52
  5. Step 5: Solve for x
    x = 16,998,525.52/5,300.82
  6. Step 6: Final answer
    x = 3,206.77

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