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Finding the Third Proportional to 1,279,911.38 and 2,741,989.22

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Solution

The third proportional to 1,279,911.38 and 2,741,989.22 is: 5,874,238.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,911.38 : 2,741,989.22 = 2,741,989.22 : x
  2. Step 2: Convert to fraction form
    1,279,911.38/2,741,989.22 = 2,741,989.22/x
  3. Step 3: Cross multiply
    1,279,911.38x = 2,741,989.22 × 2,741,989.22
  4. Step 4: Simplify right side
    1,279,911.38x = 7,518,504,875,741.24
  5. Step 5: Solve for x
    x = 7,518,504,875,741.24/1,279,911.38
  6. Step 6: Final answer
    x = 5,874,238.66

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.