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Finding the Fourth Proportional to 2,067.94, 3,100.62 and 835.90

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Solution

The fourth proportional to 2,067.94, 3,100.62 and 835.90 is: 1,253.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,067.94 : 3,100.62 = 835.90 : x
  2. Step 2: Convert to fraction form
    2,067.94/3,100.62 = 835.90/x
  3. Step 3: Cross multiply
    2,067.94x = 3,100.62 × 835.90
  4. Step 4: Simplify right side
    2,067.94x = 2,591,808.26
  5. Step 5: Solve for x
    x = 2,591,808.26/2,067.94
  6. Step 6: Final answer
    x = 1,253.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.