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Finding the Third Proportional to 3,118,221.75 and 4,664,616.75

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Solution

The third proportional to 3,118,221.75 and 4,664,616.75 is: 6,977,903.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,221.75 : 4,664,616.75 = 4,664,616.75 : x
  2. Step 2: Convert to fraction form
    3,118,221.75/4,664,616.75 = 4,664,616.75/x
  3. Step 3: Cross multiply
    3,118,221.75x = 4,664,616.75 × 4,664,616.75
  4. Step 4: Simplify right side
    3,118,221.75x = 21,758,649,424,380.56
  5. Step 5: Solve for x
    x = 21,758,649,424,380.56/3,118,221.75
  6. Step 6: Final answer
    x = 6,977,903.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.