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Finding the Third Proportional to 4,230,974 and 9,135,243

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Solution

The third proportional to 4,230,974 and 9,135,243 is: 19,724,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,230,974 : 9,135,243 = 9,135,243 : x
  2. Step 2: Convert to fraction form
    4,230,974/9,135,243 = 9,135,243/x
  3. Step 3: Cross multiply
    4,230,974x = 9,135,243 × 9,135,243
  4. Step 4: Simplify right side
    4,230,974x = 83,452,664,669,049
  5. Step 5: Solve for x
    x = 83,452,664,669,049/4,230,974
  6. Step 6: Final answer
    x = 19,724,220.63

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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.