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Finding the Third Proportional to 24,789 and 39,906

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Solution

The third proportional to 24,789 and 39,906 is: 64,241.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,789 : 39,906 = 39,906 : x
  2. Step 2: Convert to fraction form
    24,789/39,906 = 39,906/x
  3. Step 3: Cross multiply
    24,789x = 39,906 × 39,906
  4. Step 4: Simplify right side
    24,789x = 1,592,488,836
  5. Step 5: Solve for x
    x = 1,592,488,836/24,789
  6. Step 6: Final answer
    x = 64,241.75

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.