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Finding the Third Proportional to 4,061,520.98 and 8,920,066.78

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Solution

The third proportional to 4,061,520.98 and 8,920,066.78 is: 19,590,589.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,061,520.98 : 8,920,066.78 = 8,920,066.78 : x
  2. Step 2: Convert to fraction form
    4,061,520.98/8,920,066.78 = 8,920,066.78/x
  3. Step 3: Cross multiply
    4,061,520.98x = 8,920,066.78 × 8,920,066.78
  4. Step 4: Simplify right side
    4,061,520.98x = 79,567,591,381,959.73
  5. Step 5: Solve for x
    x = 79,567,591,381,959.73/4,061,520.98
  6. Step 6: Final answer
    x = 19,590,589.75

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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.