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Finding the Third Proportional to 30,422 and 40,694

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Solution

The third proportional to 30,422 and 40,694 is: 54,434.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,422 : 40,694 = 40,694 : x
  2. Step 2: Convert to fraction form
    30,422/40,694 = 40,694/x
  3. Step 3: Cross multiply
    30,422x = 40,694 × 40,694
  4. Step 4: Simplify right side
    30,422x = 1,656,001,636
  5. Step 5: Solve for x
    x = 1,656,001,636/30,422
  6. Step 6: Final answer
    x = 54,434.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.