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Finding the Third Proportional to 1,328 and 3,443

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Solution

The third proportional to 1,328 and 3,443 is: 8,926.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328 : 3,443 = 3,443 : x
  2. Step 2: Convert to fraction form
    1,328/3,443 = 3,443/x
  3. Step 3: Cross multiply
    1,328x = 3,443 × 3,443
  4. Step 4: Simplify right side
    1,328x = 11,854,249
  5. Step 5: Solve for x
    x = 11,854,249/1,328
  6. Step 6: Final answer
    x = 8,926.39

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Why These Related Problems?

These problems maintain the same ratio (2.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.