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Finding the Third Proportional to 13,217,351 and 20,205,924

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Solution

The third proportional to 13,217,351 and 20,205,924 is: 30,889,651.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217,351 : 20,205,924 = 20,205,924 : x
  2. Step 2: Convert to fraction form
    13,217,351/20,205,924 = 20,205,924/x
  3. Step 3: Cross multiply
    13,217,351x = 20,205,924 × 20,205,924
  4. Step 4: Simplify right side
    13,217,351x = 408,279,364,693,776
  5. Step 5: Solve for x
    x = 408,279,364,693,776/13,217,351
  6. Step 6: Final answer
    x = 30,889,651.39

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.