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Finding the Third Proportional to 2,786,911 and 6,121,871

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Solution

The third proportional to 2,786,911 and 6,121,871 is: 13,447,614.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786,911 : 6,121,871 = 6,121,871 : x
  2. Step 2: Convert to fraction form
    2,786,911/6,121,871 = 6,121,871/x
  3. Step 3: Cross multiply
    2,786,911x = 6,121,871 × 6,121,871
  4. Step 4: Simplify right side
    2,786,911x = 37,477,304,540,641
  5. Step 5: Solve for x
    x = 37,477,304,540,641/2,786,911
  6. Step 6: Final answer
    x = 13,447,614.42

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.