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Finding the Third Proportional to 19,722 and 29,788

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Solution

The third proportional to 19,722 and 29,788 is: 44,991.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,722 : 29,788 = 29,788 : x
  2. Step 2: Convert to fraction form
    19,722/29,788 = 29,788/x
  3. Step 3: Cross multiply
    19,722x = 29,788 × 29,788
  4. Step 4: Simplify right side
    19,722x = 887,324,944
  5. Step 5: Solve for x
    x = 887,324,944/19,722
  6. Step 6: Final answer
    x = 44,991.63

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.