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Finding the Third Proportional to 12,792,139.50 and 20,886,198

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Solution

The third proportional to 12,792,139.50 and 20,886,198 is: 34,101,665.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792,139.50 : 20,886,198 = 20,886,198 : x
  2. Step 2: Convert to fraction form
    12,792,139.50/20,886,198 = 20,886,198/x
  3. Step 3: Cross multiply
    12,792,139.50x = 20,886,198 × 20,886,198
  4. Step 4: Simplify right side
    12,792,139.50x = 436,233,266,895,204
  5. Step 5: Solve for x
    x = 436,233,266,895,204/12,792,139.50
  6. Step 6: Final answer
    x = 34,101,665.86

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.