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Finding the Third Proportional to 33,979.50 and 51,354

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Solution

The third proportional to 33,979.50 and 51,354 is: 77,612.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,979.50 : 51,354 = 51,354 : x
  2. Step 2: Convert to fraction form
    33,979.50/51,354 = 51,354/x
  3. Step 3: Cross multiply
    33,979.50x = 51,354 × 51,354
  4. Step 4: Simplify right side
    33,979.50x = 2,637,233,316
  5. Step 5: Solve for x
    x = 2,637,233,316/33,979.50
  6. Step 6: Final answer
    x = 77,612.48

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.