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Finding the Third Proportional to 27,990,198 and 43,178,049

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Solution

The third proportional to 27,990,198 and 43,178,049 is: 66,607,028.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990,198 : 43,178,049 = 43,178,049 : x
  2. Step 2: Convert to fraction form
    27,990,198/43,178,049 = 43,178,049/x
  3. Step 3: Cross multiply
    27,990,198x = 43,178,049 × 43,178,049
  4. Step 4: Simplify right side
    27,990,198x = 1,864,343,915,446,401
  5. Step 5: Solve for x
    x = 1,864,343,915,446,401/27,990,198
  6. Step 6: Final answer
    x = 66,607,028.48

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.