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Finding the Third Proportional to 3,292,416 and 7,188,120

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Solution

The third proportional to 3,292,416 and 7,188,120 is: 15,693,359.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,292,416 : 7,188,120 = 7,188,120 : x
  2. Step 2: Convert to fraction form
    3,292,416/7,188,120 = 7,188,120/x
  3. Step 3: Cross multiply
    3,292,416x = 7,188,120 × 7,188,120
  4. Step 4: Simplify right side
    3,292,416x = 51,669,069,134,400
  5. Step 5: Solve for x
    x = 51,669,069,134,400/3,292,416
  6. Step 6: Final answer
    x = 15,693,359.87

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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.