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Finding the Third Proportional to 19,221 and 29,697

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Solution

The third proportional to 19,221 and 29,697 is: 45,882.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,221 : 29,697 = 29,697 : x
  2. Step 2: Convert to fraction form
    19,221/29,697 = 29,697/x
  3. Step 3: Cross multiply
    19,221x = 29,697 × 29,697
  4. Step 4: Simplify right side
    19,221x = 881,911,809
  5. Step 5: Solve for x
    x = 881,911,809/19,221
  6. Step 6: Final answer
    x = 45,882.72

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.