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Finding the Third Proportional to 20,186,554 and 43,780,454

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Solution

The third proportional to 20,186,554 and 43,780,454 is: 94,950,735.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186,554 : 43,780,454 = 43,780,454 : x
  2. Step 2: Convert to fraction form
    20,186,554/43,780,454 = 43,780,454/x
  3. Step 3: Cross multiply
    20,186,554x = 43,780,454 × 43,780,454
  4. Step 4: Simplify right side
    20,186,554x = 1,916,728,152,446,116
  5. Step 5: Solve for x
    x = 1,916,728,152,446,116/20,186,554
  6. Step 6: Final answer
    x = 94,950,735.65

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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.