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Finding the Third Proportional to 19,884 and 29,418

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Solution

The third proportional to 19,884 and 29,418 is: 43,523.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,884 : 29,418 = 29,418 : x
  2. Step 2: Convert to fraction form
    19,884/29,418 = 29,418/x
  3. Step 3: Cross multiply
    19,884x = 29,418 × 29,418
  4. Step 4: Simplify right side
    19,884x = 865,418,724
  5. Step 5: Solve for x
    x = 865,418,724/19,884
  6. Step 6: Final answer
    x = 43,523.37

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.