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Finding the Third Proportional to 1,821,240 and 2,672,811

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Solution

The third proportional to 1,821,240 and 2,672,811 is: 3,922,557.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,240 : 2,672,811 = 2,672,811 : x
  2. Step 2: Convert to fraction form
    1,821,240/2,672,811 = 2,672,811/x
  3. Step 3: Cross multiply
    1,821,240x = 2,672,811 × 2,672,811
  4. Step 4: Simplify right side
    1,821,240x = 7,143,918,641,721
  5. Step 5: Solve for x
    x = 7,143,918,641,721/1,821,240
  6. Step 6: Final answer
    x = 3,922,557.51

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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.