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Finding the Fourth Proportional to 4,761.57, 7,136.79 and 2,913.56

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Solution

The fourth proportional to 4,761.57, 7,136.79 and 2,913.56 is: 4,366.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,761.57 : 7,136.79 = 2,913.56 : x
  2. Step 2: Convert to fraction form
    4,761.57/7,136.79 = 2,913.56/x
  3. Step 3: Cross multiply
    4,761.57x = 7,136.79 × 2,913.56
  4. Step 4: Simplify right side
    4,761.57x = 20,793,465.87
  5. Step 5: Solve for x
    x = 20,793,465.87/4,761.57
  6. Step 6: Final answer
    x = 4,366.93

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