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Finding the Third Proportional to 6,448 and 6,934

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Solution

The third proportional to 6,448 and 6,934 is: 7,456.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,448 : 6,934 = 6,934 : x
  2. Step 2: Convert to fraction form
    6,448/6,934 = 6,934/x
  3. Step 3: Cross multiply
    6,448x = 6,934 × 6,934
  4. Step 4: Simplify right side
    6,448x = 48,080,356
  5. Step 5: Solve for x
    x = 48,080,356/6,448
  6. Step 6: Final answer
    x = 7,456.63

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.