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Finding the Third Proportional to 1,622 and 4,406

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Solution

The third proportional to 1,622 and 4,406 is: 11,968.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,622 : 4,406 = 4,406 : x
  2. Step 2: Convert to fraction form
    1,622/4,406 = 4,406/x
  3. Step 3: Cross multiply
    1,622x = 4,406 × 4,406
  4. Step 4: Simplify right side
    1,622x = 19,412,836
  5. Step 5: Solve for x
    x = 19,412,836/1,622
  6. Step 6: Final answer
    x = 11,968.46

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Why These Related Problems?

These problems maintain the same ratio (2.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.