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Finding the Third Proportional to 21,155,474 and 45,832,324

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Solution

The third proportional to 21,155,474 and 45,832,324 is: 99,293,540.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,155,474 : 45,832,324 = 45,832,324 : x
  2. Step 2: Convert to fraction form
    21,155,474/45,832,324 = 45,832,324/x
  3. Step 3: Cross multiply
    21,155,474x = 45,832,324 × 45,832,324
  4. Step 4: Simplify right side
    21,155,474x = 2,100,601,923,240,976
  5. Step 5: Solve for x
    x = 2,100,601,923,240,976/21,155,474
  6. Step 6: Final answer
    x = 99,293,540.92

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.