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Finding the Third Proportional to 3,217,868 and 4,721,609

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Solution

The third proportional to 3,217,868 and 4,721,609 is: 6,928,062.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217,868 : 4,721,609 = 4,721,609 : x
  2. Step 2: Convert to fraction form
    3,217,868/4,721,609 = 4,721,609/x
  3. Step 3: Cross multiply
    3,217,868x = 4,721,609 × 4,721,609
  4. Step 4: Simplify right side
    3,217,868x = 22,293,591,548,881
  5. Step 5: Solve for x
    x = 22,293,591,548,881/3,217,868
  6. Step 6: Final answer
    x = 6,928,062.79

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.