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Finding the Third Proportional to 3,403 and 8,112

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Solution

The third proportional to 3,403 and 8,112 is: 19,337.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403 : 8,112 = 8,112 : x
  2. Step 2: Convert to fraction form
    3,403/8,112 = 8,112/x
  3. Step 3: Cross multiply
    3,403x = 8,112 × 8,112
  4. Step 4: Simplify right side
    3,403x = 65,804,544
  5. Step 5: Solve for x
    x = 65,804,544/3,403
  6. Step 6: Final answer
    x = 19,337.22

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.