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Finding the Third Proportional to 34,580 and 38,180

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Solution

The third proportional to 34,580 and 38,180 is: 42,154.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,580 : 38,180 = 38,180 : x
  2. Step 2: Convert to fraction form
    34,580/38,180 = 38,180/x
  3. Step 3: Cross multiply
    34,580x = 38,180 × 38,180
  4. Step 4: Simplify right side
    34,580x = 1,457,712,400
  5. Step 5: Solve for x
    x = 1,457,712,400/34,580
  6. Step 6: Final answer
    x = 42,154.78

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.