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Finding the Third Proportional to 3,940,987.50 and 5,939,669.81

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Solution

The third proportional to 3,940,987.50 and 5,939,669.81 is: 8,951,989.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940,987.50 : 5,939,669.81 = 5,939,669.81 : x
  2. Step 2: Convert to fraction form
    3,940,987.50/5,939,669.81 = 5,939,669.81/x
  3. Step 3: Cross multiply
    3,940,987.50x = 5,939,669.81 × 5,939,669.81
  4. Step 4: Simplify right side
    3,940,987.50x = 35,279,677,481,523.78
  5. Step 5: Solve for x
    x = 35,279,677,481,523.78/3,940,987.50
  6. Step 6: Final answer
    x = 8,951,989.19

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.