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Finding the Fourth Proportional to 3,163.26, 4,744.33 and 854.94

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Solution

The fourth proportional to 3,163.26, 4,744.33 and 854.94 is: 1,282.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,163.26 : 4,744.33 = 854.94 : x
  2. Step 2: Convert to fraction form
    3,163.26/4,744.33 = 854.94/x
  3. Step 3: Cross multiply
    3,163.26x = 4,744.33 × 854.94
  4. Step 4: Simplify right side
    3,163.26x = 4,056,117.49
  5. Step 5: Solve for x
    x = 4,056,117.49/3,163.26
  6. Step 6: Final answer
    x = 1,282.26

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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.