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Finding the Third Proportional to 6,466 and 9,121

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Solution

The third proportional to 6,466 and 9,121 is: 12,866.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,466 : 9,121 = 9,121 : x
  2. Step 2: Convert to fraction form
    6,466/9,121 = 9,121/x
  3. Step 3: Cross multiply
    6,466x = 9,121 × 9,121
  4. Step 4: Simplify right side
    6,466x = 83,192,641
  5. Step 5: Solve for x
    x = 83,192,641/6,466
  6. Step 6: Final answer
    x = 12,866.17

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.