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Finding the Third Proportional to 3,220,939 and 7,020,604

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Solution

The third proportional to 3,220,939 and 7,020,604 is: 15,302,643.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220,939 : 7,020,604 = 7,020,604 : x
  2. Step 2: Convert to fraction form
    3,220,939/7,020,604 = 7,020,604/x
  3. Step 3: Cross multiply
    3,220,939x = 7,020,604 × 7,020,604
  4. Step 4: Simplify right side
    3,220,939x = 49,288,880,524,816
  5. Step 5: Solve for x
    x = 49,288,880,524,816/3,220,939
  6. Step 6: Final answer
    x = 15,302,643.27

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.