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Finding the Third Proportional to 3,724,238.88 and 7,999,640.21

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Solution

The third proportional to 3,724,238.88 and 7,999,640.21 is: 17,183,173.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724,238.88 : 7,999,640.21 = 7,999,640.21 : x
  2. Step 2: Convert to fraction form
    3,724,238.88/7,999,640.21 = 7,999,640.21/x
  3. Step 3: Cross multiply
    3,724,238.88x = 7,999,640.21 × 7,999,640.21
  4. Step 4: Simplify right side
    3,724,238.88x = 63,994,243,473,198.37
  5. Step 5: Solve for x
    x = 63,994,243,473,198.37/3,724,238.88
  6. Step 6: Final answer
    x = 17,183,173.66

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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.