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Finding the Third Proportional to 6,626 and 8,791

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Solution

The third proportional to 6,626 and 8,791 is: 11,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,626 : 8,791 = 8,791 : x
  2. Step 2: Convert to fraction form
    6,626/8,791 = 8,791/x
  3. Step 3: Cross multiply
    6,626x = 8,791 × 8,791
  4. Step 4: Simplify right side
    6,626x = 77,281,681
  5. Step 5: Solve for x
    x = 77,281,681/6,626
  6. Step 6: Final answer
    x = 11,663.40

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.