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Finding the Third Proportional to 33,338 and 51,688

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Solution

The third proportional to 33,338 and 51,688 is: 80,138.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,338 : 51,688 = 51,688 : x
  2. Step 2: Convert to fraction form
    33,338/51,688 = 51,688/x
  3. Step 3: Cross multiply
    33,338x = 51,688 × 51,688
  4. Step 4: Simplify right side
    33,338x = 2,671,649,344
  5. Step 5: Solve for x
    x = 2,671,649,344/33,338
  6. Step 6: Final answer
    x = 80,138.26

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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.