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Finding the Third Proportional to 6,290 and 6,802

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Solution

The third proportional to 6,290 and 6,802 is: 7,355.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,290 : 6,802 = 6,802 : x
  2. Step 2: Convert to fraction form
    6,290/6,802 = 6,802/x
  3. Step 3: Cross multiply
    6,290x = 6,802 × 6,802
  4. Step 4: Simplify right side
    6,290x = 46,267,204
  5. Step 5: Solve for x
    x = 46,267,204/6,290
  6. Step 6: Final answer
    x = 7,355.68

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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.