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Finding the Third Proportional to 6,788 and 9,310

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Solution

The third proportional to 6,788 and 9,310 is: 12,769.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,788 : 9,310 = 9,310 : x
  2. Step 2: Convert to fraction form
    6,788/9,310 = 9,310/x
  3. Step 3: Cross multiply
    6,788x = 9,310 × 9,310
  4. Step 4: Simplify right side
    6,788x = 86,676,100
  5. Step 5: Solve for x
    x = 86,676,100/6,788
  6. Step 6: Final answer
    x = 12,769.02

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.