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Finding the Third Proportional to 20,121,368 and 43,645,431

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Solution

The third proportional to 20,121,368 and 43,645,431 is: 94,671,676.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,121,368 : 43,645,431 = 43,645,431 : x
  2. Step 2: Convert to fraction form
    20,121,368/43,645,431 = 43,645,431/x
  3. Step 3: Cross multiply
    20,121,368x = 43,645,431 × 43,645,431
  4. Step 4: Simplify right side
    20,121,368x = 1,904,923,647,175,761
  5. Step 5: Solve for x
    x = 1,904,923,647,175,761/20,121,368
  6. Step 6: Final answer
    x = 94,671,676.76

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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.