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Finding the Third Proportional to 6,461 and 8,717

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Solution

The third proportional to 6,461 and 8,717 is: 11,760.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461 : 8,717 = 8,717 : x
  2. Step 2: Convert to fraction form
    6,461/8,717 = 8,717/x
  3. Step 3: Cross multiply
    6,461x = 8,717 × 8,717
  4. Step 4: Simplify right side
    6,461x = 75,986,089
  5. Step 5: Solve for x
    x = 75,986,089/6,461
  6. Step 6: Final answer
    x = 11,760.73

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.