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Finding the Third Proportional to 5,720 and 8,701

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Solution

The third proportional to 5,720 and 8,701 is: 13,235.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,720 : 8,701 = 8,701 : x
  2. Step 2: Convert to fraction form
    5,720/8,701 = 8,701/x
  3. Step 3: Cross multiply
    5,720x = 8,701 × 8,701
  4. Step 4: Simplify right side
    5,720x = 75,707,401
  5. Step 5: Solve for x
    x = 75,707,401/5,720
  6. Step 6: Final answer
    x = 13,235.56

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.