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Finding the Third Proportional to 1,808,674.73 and 3,981,678.61

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Solution

The third proportional to 1,808,674.73 and 3,981,678.61 is: 8,765,403.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,808,674.73 : 3,981,678.61 = 3,981,678.61 : x
  2. Step 2: Convert to fraction form
    1,808,674.73/3,981,678.61 = 3,981,678.61/x
  3. Step 3: Cross multiply
    1,808,674.73x = 3,981,678.61 × 3,981,678.61
  4. Step 4: Simplify right side
    1,808,674.73x = 15,853,764,548,354.43
  5. Step 5: Solve for x
    x = 15,853,764,548,354.43/1,808,674.73
  6. Step 6: Final answer
    x = 8,765,403.89

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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.