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Finding the Third Proportional to 3,991,383 and 8,735,625.75

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Solution

The third proportional to 3,991,383 and 8,735,625.75 is: 19,118,976.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991,383 : 8,735,625.75 = 8,735,625.75 : x
  2. Step 2: Convert to fraction form
    3,991,383/8,735,625.75 = 8,735,625.75/x
  3. Step 3: Cross multiply
    3,991,383x = 8,735,625.75 × 8,735,625.75
  4. Step 4: Simplify right side
    3,991,383x = 76,311,157,244,063.06
  5. Step 5: Solve for x
    x = 76,311,157,244,063.06/3,991,383
  6. Step 6: Final answer
    x = 19,118,976.37

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.