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Finding the Third Proportional to 5,370 and 8,443

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Solution

The third proportional to 5,370 and 8,443 is: 13,274.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,370 : 8,443 = 8,443 : x
  2. Step 2: Convert to fraction form
    5,370/8,443 = 8,443/x
  3. Step 3: Cross multiply
    5,370x = 8,443 × 8,443
  4. Step 4: Simplify right side
    5,370x = 71,284,249
  5. Step 5: Solve for x
    x = 71,284,249/5,370
  6. Step 6: Final answer
    x = 13,274.53

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.