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Finding the Third Proportional to 5,571 and 8,636

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Solution

The third proportional to 5,571 and 8,636 is: 13,387.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,571 : 8,636 = 8,636 : x
  2. Step 2: Convert to fraction form
    5,571/8,636 = 8,636/x
  3. Step 3: Cross multiply
    5,571x = 8,636 × 8,636
  4. Step 4: Simplify right side
    5,571x = 74,580,496
  5. Step 5: Solve for x
    x = 74,580,496/5,571
  6. Step 6: Final answer
    x = 13,387.27

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.