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Finding the Third Proportional to 6,646 and 9,031

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Solution

The third proportional to 6,646 and 9,031 is: 12,271.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,646 : 9,031 = 9,031 : x
  2. Step 2: Convert to fraction form
    6,646/9,031 = 9,031/x
  3. Step 3: Cross multiply
    6,646x = 9,031 × 9,031
  4. Step 4: Simplify right side
    6,646x = 81,558,961
  5. Step 5: Solve for x
    x = 81,558,961/6,646
  6. Step 6: Final answer
    x = 12,271.89

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.