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Finding the Third Proportional to 18,204,000.75 and 39,109,311

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Solution

The third proportional to 18,204,000.75 and 39,109,311 is: 84,022,090.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,204,000.75 : 39,109,311 = 39,109,311 : x
  2. Step 2: Convert to fraction form
    18,204,000.75/39,109,311 = 39,109,311/x
  3. Step 3: Cross multiply
    18,204,000.75x = 39,109,311 × 39,109,311
  4. Step 4: Simplify right side
    18,204,000.75x = 1,529,538,206,894,721
  5. Step 5: Solve for x
    x = 1,529,538,206,894,721/18,204,000.75
  6. Step 6: Final answer
    x = 84,022,090.96

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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.