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Finding the Third Proportional to 5,578,661 and 8,620,452

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Solution

The third proportional to 5,578,661 and 8,620,452 is: 13,320,793.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,578,661 : 8,620,452 = 8,620,452 : x
  2. Step 2: Convert to fraction form
    5,578,661/8,620,452 = 8,620,452/x
  3. Step 3: Cross multiply
    5,578,661x = 8,620,452 × 8,620,452
  4. Step 4: Simplify right side
    5,578,661x = 74,312,192,684,304
  5. Step 5: Solve for x
    x = 74,312,192,684,304/5,578,661
  6. Step 6: Final answer
    x = 13,320,793.77

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.