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Finding the Fourth Proportional to 2,611.83, 3,918.76 and 1,149.96

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Solution

The fourth proportional to 2,611.83, 3,918.76 and 1,149.96 is: 1,725.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,611.83 : 3,918.76 = 1,149.96 : x
  2. Step 2: Convert to fraction form
    2,611.83/3,918.76 = 1,149.96/x
  3. Step 3: Cross multiply
    2,611.83x = 3,918.76 × 1,149.96
  4. Step 4: Simplify right side
    2,611.83x = 4,506,402.47
  5. Step 5: Solve for x
    x = 4,506,402.47/2,611.83
  6. Step 6: Final answer
    x = 1,725.38

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