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Finding the Third Proportional to 9,635,978 and 20,859,696

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Solution

The third proportional to 9,635,978 and 20,859,696 is: 45,156,487.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,635,978 : 20,859,696 = 20,859,696 : x
  2. Step 2: Convert to fraction form
    9,635,978/20,859,696 = 20,859,696/x
  3. Step 3: Cross multiply
    9,635,978x = 20,859,696 × 20,859,696
  4. Step 4: Simplify right side
    9,635,978x = 435,126,917,212,416
  5. Step 5: Solve for x
    x = 435,126,917,212,416/9,635,978
  6. Step 6: Final answer
    x = 45,156,487.20

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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.