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Finding the Third Proportional to 9,436,694 and 20,639,655

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Solution

The third proportional to 9,436,694 and 20,639,655 is: 45,142,436.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,436,694 : 20,639,655 = 20,639,655 : x
  2. Step 2: Convert to fraction form
    9,436,694/20,639,655 = 20,639,655/x
  3. Step 3: Cross multiply
    9,436,694x = 20,639,655 × 20,639,655
  4. Step 4: Simplify right side
    9,436,694x = 425,995,358,519,025
  5. Step 5: Solve for x
    x = 425,995,358,519,025/9,436,694
  6. Step 6: Final answer
    x = 45,142,436.38

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.