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Finding the Third Proportional to 1,808,673.21 and 3,981,674.13

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Solution

The third proportional to 1,808,673.21 and 3,981,674.13 is: 8,765,391.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808,673.21 : 3,981,674.13 = 3,981,674.13 : x
  2. Step 2: Convert to fraction form
    1,808,673.21/3,981,674.13 = 3,981,674.13/x
  3. Step 3: Cross multiply
    1,808,673.21x = 3,981,674.13 × 3,981,674.13
  4. Step 4: Simplify right side
    1,808,673.21x = 15,853,728,853,247.73
  5. Step 5: Solve for x
    x = 15,853,728,853,247.73/1,808,673.21
  6. Step 6: Final answer
    x = 8,765,391.56

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.