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Finding the Third Proportional to 9,903,111 and 20,998,500

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Solution

The third proportional to 9,903,111 and 20,998,500 is: 44,525,099.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903,111 : 20,998,500 = 20,998,500 : x
  2. Step 2: Convert to fraction form
    9,903,111/20,998,500 = 20,998,500/x
  3. Step 3: Cross multiply
    9,903,111x = 20,998,500 × 20,998,500
  4. Step 4: Simplify right side
    9,903,111x = 440,937,002,250,000
  5. Step 5: Solve for x
    x = 440,937,002,250,000/9,903,111
  6. Step 6: Final answer
    x = 44,525,099.46

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.