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Finding the Third Proportional to 1,992,721.50 and 3,172,351.50

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Solution

The third proportional to 1,992,721.50 and 3,172,351.50 is: 5,050,286.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,721.50 : 3,172,351.50 = 3,172,351.50 : x
  2. Step 2: Convert to fraction form
    1,992,721.50/3,172,351.50 = 3,172,351.50/x
  3. Step 3: Cross multiply
    1,992,721.50x = 3,172,351.50 × 3,172,351.50
  4. Step 4: Simplify right side
    1,992,721.50x = 10,063,814,039,552.25
  5. Step 5: Solve for x
    x = 10,063,814,039,552.25/1,992,721.50
  6. Step 6: Final answer
    x = 5,050,286.27

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.