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Finding the Third Proportional to 7,220,667 and 15,858,588

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Solution

The third proportional to 7,220,667 and 15,858,588 is: 34,829,858.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220,667 : 15,858,588 = 15,858,588 : x
  2. Step 2: Convert to fraction form
    7,220,667/15,858,588 = 15,858,588/x
  3. Step 3: Cross multiply
    7,220,667x = 15,858,588 × 15,858,588
  4. Step 4: Simplify right side
    7,220,667x = 251,494,813,353,744
  5. Step 5: Solve for x
    x = 251,494,813,353,744/7,220,667
  6. Step 6: Final answer
    x = 34,829,858.98

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.