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Finding the Third Proportional to 4,136,809.75 and 9,018,478

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Solution

The third proportional to 4,136,809.75 and 9,018,478 is: 19,660,789.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,136,809.75 : 9,018,478 = 9,018,478 : x
  2. Step 2: Convert to fraction form
    4,136,809.75/9,018,478 = 9,018,478/x
  3. Step 3: Cross multiply
    4,136,809.75x = 9,018,478 × 9,018,478
  4. Step 4: Simplify right side
    4,136,809.75x = 81,332,945,436,484
  5. Step 5: Solve for x
    x = 81,332,945,436,484/4,136,809.75
  6. Step 6: Final answer
    x = 19,660,789.44

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.