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Finding the Third Proportional to 3,220,912 and 7,008,553

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Solution

The third proportional to 3,220,912 and 7,008,553 is: 15,250,281.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220,912 : 7,008,553 = 7,008,553 : x
  2. Step 2: Convert to fraction form
    3,220,912/7,008,553 = 7,008,553/x
  3. Step 3: Cross multiply
    3,220,912x = 7,008,553 × 7,008,553
  4. Step 4: Simplify right side
    3,220,912x = 49,119,815,153,809
  5. Step 5: Solve for x
    x = 49,119,815,153,809/3,220,912
  6. Step 6: Final answer
    x = 15,250,281.65

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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.