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Finding the Third Proportional to 3,406 and 7,436

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Solution

The third proportional to 3,406 and 7,436 is: 16,234.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,406 : 7,436 = 7,436 : x
  2. Step 2: Convert to fraction form
    3,406/7,436 = 7,436/x
  3. Step 3: Cross multiply
    3,406x = 7,436 × 7,436
  4. Step 4: Simplify right side
    3,406x = 55,294,096
  5. Step 5: Solve for x
    x = 55,294,096/3,406
  6. Step 6: Final answer
    x = 16,234.32

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.