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Finding the Third Proportional to 18,653,745 and 40,141,836

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Solution

The third proportional to 18,653,745 and 40,141,836 is: 86,383,029.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,653,745 : 40,141,836 = 40,141,836 : x
  2. Step 2: Convert to fraction form
    18,653,745/40,141,836 = 40,141,836/x
  3. Step 3: Cross multiply
    18,653,745x = 40,141,836 × 40,141,836
  4. Step 4: Simplify right side
    18,653,745x = 1,611,366,997,450,896
  5. Step 5: Solve for x
    x = 1,611,366,997,450,896/18,653,745
  6. Step 6: Final answer
    x = 86,383,029.12

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.