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Finding the Third Proportional to 7,969,968 and 17,100,990

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Solution

The third proportional to 7,969,968 and 17,100,990 is: 36,693,228.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,969,968 : 17,100,990 = 17,100,990 : x
  2. Step 2: Convert to fraction form
    7,969,968/17,100,990 = 17,100,990/x
  3. Step 3: Cross multiply
    7,969,968x = 17,100,990 × 17,100,990
  4. Step 4: Simplify right side
    7,969,968x = 292,443,858,980,100
  5. Step 5: Solve for x
    x = 292,443,858,980,100/7,969,968
  6. Step 6: Final answer
    x = 36,693,228.75

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.