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Finding the Fourth Proportional to 11,163.55, 16,745.45 and 2,843.55

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Solution

The fourth proportional to 11,163.55, 16,745.45 and 2,843.55 is: 4,265.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.55 : 16,745.45 = 2,843.55 : x
  2. Step 2: Convert to fraction form
    11,163.55/16,745.45 = 2,843.55/x
  3. Step 3: Cross multiply
    11,163.55x = 16,745.45 × 2,843.55
  4. Step 4: Simplify right side
    11,163.55x = 47,616,524.35
  5. Step 5: Solve for x
    x = 47,616,524.35/11,163.55
  6. Step 6: Final answer
    x = 4,265.36

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1.5x scale

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.