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Finding the Third Proportional to 5,216,445 and 11,150,781

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Solution

The third proportional to 5,216,445 and 11,150,781 is: 23,836,140.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,216,445 : 11,150,781 = 11,150,781 : x
  2. Step 2: Convert to fraction form
    5,216,445/11,150,781 = 11,150,781/x
  3. Step 3: Cross multiply
    5,216,445x = 11,150,781 × 11,150,781
  4. Step 4: Simplify right side
    5,216,445x = 124,339,916,909,961
  5. Step 5: Solve for x
    x = 124,339,916,909,961/5,216,445
  6. Step 6: Final answer
    x = 23,836,140.69

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.