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Finding the Third Proportional to 20,563,826 and 45,163,212

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Solution

The third proportional to 20,563,826 and 45,163,212 is: 99,189,504.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563,826 : 45,163,212 = 45,163,212 : x
  2. Step 2: Convert to fraction form
    20,563,826/45,163,212 = 45,163,212/x
  3. Step 3: Cross multiply
    20,563,826x = 45,163,212 × 45,163,212
  4. Step 4: Simplify right side
    20,563,826x = 2,039,715,718,156,944
  5. Step 5: Solve for x
    x = 2,039,715,718,156,944/20,563,826
  6. Step 6: Final answer
    x = 99,189,504.82

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.