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Finding the Third Proportional to 8,977,817 and 13,929,876

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Solution

The third proportional to 8,977,817 and 13,929,876 is: 21,613,432.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,977,817 : 13,929,876 = 13,929,876 : x
  2. Step 2: Convert to fraction form
    8,977,817/13,929,876 = 13,929,876/x
  3. Step 3: Cross multiply
    8,977,817x = 13,929,876 × 13,929,876
  4. Step 4: Simplify right side
    8,977,817x = 194,041,445,375,376
  5. Step 5: Solve for x
    x = 194,041,445,375,376/8,977,817
  6. Step 6: Final answer
    x = 21,613,432.91

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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.