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Finding the Third Proportional to 8,622 and 13,338

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Solution

The third proportional to 8,622 and 13,338 is: 20,633.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622 : 13,338 = 13,338 : x
  2. Step 2: Convert to fraction form
    8,622/13,338 = 13,338/x
  3. Step 3: Cross multiply
    8,622x = 13,338 × 13,338
  4. Step 4: Simplify right side
    8,622x = 177,902,244
  5. Step 5: Solve for x
    x = 177,902,244/8,622
  6. Step 6: Final answer
    x = 20,633.52

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.