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Finding the Third Proportional to 7,279,934 and 15,991,018

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Solution

The third proportional to 7,279,934 and 15,991,018 is: 35,125,683.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279,934 : 15,991,018 = 15,991,018 : x
  2. Step 2: Convert to fraction form
    7,279,934/15,991,018 = 15,991,018/x
  3. Step 3: Cross multiply
    7,279,934x = 15,991,018 × 15,991,018
  4. Step 4: Simplify right side
    7,279,934x = 255,712,656,676,324
  5. Step 5: Solve for x
    x = 255,712,656,676,324/7,279,934
  6. Step 6: Final answer
    x = 35,125,683.38

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.