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Finding the Third Proportional to 38,330 and 82,488

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Solution

The third proportional to 38,330 and 82,488 is: 177,518.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,330 : 82,488 = 82,488 : x
  2. Step 2: Convert to fraction form
    38,330/82,488 = 82,488/x
  3. Step 3: Cross multiply
    38,330x = 82,488 × 82,488
  4. Step 4: Simplify right side
    38,330x = 6,804,270,144
  5. Step 5: Solve for x
    x = 6,804,270,144/38,330
  6. Step 6: Final answer
    x = 177,518.14

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.