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Finding the Third Proportional to 15,691,821 and 33,860,778

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Solution

The third proportional to 15,691,821 and 33,860,778 is: 73,066,872.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,691,821 : 33,860,778 = 33,860,778 : x
  2. Step 2: Convert to fraction form
    15,691,821/33,860,778 = 33,860,778/x
  3. Step 3: Cross multiply
    15,691,821x = 33,860,778 × 33,860,778
  4. Step 4: Simplify right side
    15,691,821x = 1,146,552,286,765,284
  5. Step 5: Solve for x
    x = 1,146,552,286,765,284/15,691,821
  6. Step 6: Final answer
    x = 73,066,872.66

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.