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Finding the Third Proportional to 1,212,716.25 and 2,640,580.88

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Solution

The third proportional to 1,212,716.25 and 2,640,580.88 is: 5,749,628.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,716.25 : 2,640,580.88 = 2,640,580.88 : x
  2. Step 2: Convert to fraction form
    1,212,716.25/2,640,580.88 = 2,640,580.88/x
  3. Step 3: Cross multiply
    1,212,716.25x = 2,640,580.88 × 2,640,580.88
  4. Step 4: Simplify right side
    1,212,716.25x = 6,972,667,357,415.77
  5. Step 5: Solve for x
    x = 6,972,667,357,415.77/1,212,716.25
  6. Step 6: Final answer
    x = 5,749,628.04

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.