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Finding the Third Proportional to 1,919,890 and 4,124,693

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Solution

The third proportional to 1,919,890 and 4,124,693 is: 8,861,493.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,890 : 4,124,693 = 4,124,693 : x
  2. Step 2: Convert to fraction form
    1,919,890/4,124,693 = 4,124,693/x
  3. Step 3: Cross multiply
    1,919,890x = 4,124,693 × 4,124,693
  4. Step 4: Simplify right side
    1,919,890x = 17,013,092,344,249
  5. Step 5: Solve for x
    x = 17,013,092,344,249/1,919,890
  6. Step 6: Final answer
    x = 8,861,493.29

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.