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Finding the Third Proportional to 837,911 and 1,821,622

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Solution

The third proportional to 837,911 and 1,821,622 is: 3,960,213.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    837,911 : 1,821,622 = 1,821,622 : x
  2. Step 2: Convert to fraction form
    837,911/1,821,622 = 1,821,622/x
  3. Step 3: Cross multiply
    837,911x = 1,821,622 × 1,821,622
  4. Step 4: Simplify right side
    837,911x = 3,318,306,710,884
  5. Step 5: Solve for x
    x = 3,318,306,710,884/837,911
  6. Step 6: Final answer
    x = 3,960,213.81

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.