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Finding the Third Proportional to 4,291,380 and 9,279,684

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Solution

The third proportional to 4,291,380 and 9,279,684 is: 20,066,397.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,291,380 : 9,279,684 = 9,279,684 : x
  2. Step 2: Convert to fraction form
    4,291,380/9,279,684 = 9,279,684/x
  3. Step 3: Cross multiply
    4,291,380x = 9,279,684 × 9,279,684
  4. Step 4: Simplify right side
    4,291,380x = 86,112,535,139,856
  5. Step 5: Solve for x
    x = 86,112,535,139,856/4,291,380
  6. Step 6: Final answer
    x = 20,066,397.09

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These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.