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Finding the Third Proportional to 29,885 and 40,609

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Solution

The third proportional to 29,885 and 40,609 is: 55,181.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,885 : 40,609 = 40,609 : x
  2. Step 2: Convert to fraction form
    29,885/40,609 = 40,609/x
  3. Step 3: Cross multiply
    29,885x = 40,609 × 40,609
  4. Step 4: Simplify right side
    29,885x = 1,649,090,881
  5. Step 5: Solve for x
    x = 1,649,090,881/29,885
  6. Step 6: Final answer
    x = 55,181.22

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.