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Finding the Third Proportional to 5,157 and 6,723

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Solution

The third proportional to 5,157 and 6,723 is: 8,764.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,157 : 6,723 = 6,723 : x
  2. Step 2: Convert to fraction form
    5,157/6,723 = 6,723/x
  3. Step 3: Cross multiply
    5,157x = 6,723 × 6,723
  4. Step 4: Simplify right side
    5,157x = 45,198,729
  5. Step 5: Solve for x
    x = 45,198,729/5,157
  6. Step 6: Final answer
    x = 8,764.54

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.