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Finding the Third Proportional to 3,292,421 and 7,188,130

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Solution

The third proportional to 3,292,421 and 7,188,130 is: 15,693,379.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,292,421 : 7,188,130 = 7,188,130 : x
  2. Step 2: Convert to fraction form
    3,292,421/7,188,130 = 7,188,130/x
  3. Step 3: Cross multiply
    3,292,421x = 7,188,130 × 7,188,130
  4. Step 4: Simplify right side
    3,292,421x = 51,669,212,896,900
  5. Step 5: Solve for x
    x = 51,669,212,896,900/3,292,421
  6. Step 6: Final answer
    x = 15,693,379.70

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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.