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Finding the Third Proportional to 1,215,222.75 and 2,617,434

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Solution

The third proportional to 1,215,222.75 and 2,617,434 is: 5,637,617.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,222.75 : 2,617,434 = 2,617,434 : x
  2. Step 2: Convert to fraction form
    1,215,222.75/2,617,434 = 2,617,434/x
  3. Step 3: Cross multiply
    1,215,222.75x = 2,617,434 × 2,617,434
  4. Step 4: Simplify right side
    1,215,222.75x = 6,850,960,744,356
  5. Step 5: Solve for x
    x = 6,850,960,744,356/1,215,222.75
  6. Step 6: Final answer
    x = 5,637,617.26

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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.