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Finding the Third Proportional to 15,691,840 and 33,860,820

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Solution

The third proportional to 15,691,840 and 33,860,820 is: 73,066,965.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,691,840 : 33,860,820 = 33,860,820 : x
  2. Step 2: Convert to fraction form
    15,691,840/33,860,820 = 33,860,820/x
  3. Step 3: Cross multiply
    15,691,840x = 33,860,820 × 33,860,820
  4. Step 4: Simplify right side
    15,691,840x = 1,146,555,131,072,400
  5. Step 5: Solve for x
    x = 1,146,555,131,072,400/15,691,840
  6. Step 6: Final answer
    x = 73,066,965.45

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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.