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Finding the Third Proportional to 20,174,815 and 43,778,990

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Solution

The third proportional to 20,174,815 and 43,778,990 is: 94,999,630.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,174,815 : 43,778,990 = 43,778,990 : x
  2. Step 2: Convert to fraction form
    20,174,815/43,778,990 = 43,778,990/x
  3. Step 3: Cross multiply
    20,174,815x = 43,778,990 × 43,778,990
  4. Step 4: Simplify right side
    20,174,815x = 1,916,599,965,420,100
  5. Step 5: Solve for x
    x = 1,916,599,965,420,100/20,174,815
  6. Step 6: Final answer
    x = 94,999,630.25

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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.