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Finding the Third Proportional to 33,397.50 and 51,357

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Solution

The third proportional to 33,397.50 and 51,357 is: 78,974.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,397.50 : 51,357 = 51,357 : x
  2. Step 2: Convert to fraction form
    33,397.50/51,357 = 51,357/x
  3. Step 3: Cross multiply
    33,397.50x = 51,357 × 51,357
  4. Step 4: Simplify right side
    33,397.50x = 2,637,541,449
  5. Step 5: Solve for x
    x = 2,637,541,449/33,397.50
  6. Step 6: Final answer
    x = 78,974.22

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.