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Finding the Fourth Proportional to 3,641.31, 5,448.74 and 3,114.68

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Solution

The fourth proportional to 3,641.31, 5,448.74 and 3,114.68 is: 4,660.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,641.31 : 5,448.74 = 3,114.68 : x
  2. Step 2: Convert to fraction form
    3,641.31/5,448.74 = 3,114.68/x
  3. Step 3: Cross multiply
    3,641.31x = 5,448.74 × 3,114.68
  4. Step 4: Simplify right side
    3,641.31x = 16,971,038.69
  5. Step 5: Solve for x
    x = 16,971,038.69/3,641.31
  6. Step 6: Final answer
    x = 4,660.70

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