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Finding the Third Proportional to 1,279,881.75 and 2,749,707.75

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Solution

The third proportional to 1,279,881.75 and 2,749,707.75 is: 5,907,493.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,881.75 : 2,749,707.75 = 2,749,707.75 : x
  2. Step 2: Convert to fraction form
    1,279,881.75/2,749,707.75 = 2,749,707.75/x
  3. Step 3: Cross multiply
    1,279,881.75x = 2,749,707.75 × 2,749,707.75
  4. Step 4: Simplify right side
    1,279,881.75x = 7,560,892,710,410.06
  5. Step 5: Solve for x
    x = 7,560,892,710,410.06/1,279,881.75
  6. Step 6: Final answer
    x = 5,907,493.18

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.