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Finding the Third Proportional to 38,330 and 83,410

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Solution

The third proportional to 38,330 and 83,410 is: 181,508.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,330 : 83,410 = 83,410 : x
  2. Step 2: Convert to fraction form
    38,330/83,410 = 83,410/x
  3. Step 3: Cross multiply
    38,330x = 83,410 × 83,410
  4. Step 4: Simplify right side
    38,330x = 6,957,228,100
  5. Step 5: Solve for x
    x = 6,957,228,100/38,330
  6. Step 6: Final answer
    x = 181,508.69

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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.