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Finding the Third Proportional to 4,621,919 and 7,212,682

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Solution

The third proportional to 4,621,919 and 7,212,682 is: 11,255,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,621,919 : 7,212,682 = 7,212,682 : x
  2. Step 2: Convert to fraction form
    4,621,919/7,212,682 = 7,212,682/x
  3. Step 3: Cross multiply
    4,621,919x = 7,212,682 × 7,212,682
  4. Step 4: Simplify right side
    4,621,919x = 52,022,781,633,124
  5. Step 5: Solve for x
    x = 52,022,781,633,124/4,621,919
  6. Step 6: Final answer
    x = 11,255,667.10

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.