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Finding the Third Proportional to 18,623.67 and 39,400.17

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Solution

The third proportional to 18,623.67 and 39,400.17 is: 83,354.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,623.67 : 39,400.17 = 39,400.17 : x
  2. Step 2: Convert to fraction form
    18,623.67/39,400.17 = 39,400.17/x
  3. Step 3: Cross multiply
    18,623.67x = 39,400.17 × 39,400.17
  4. Step 4: Simplify right side
    18,623.67x = 1,552,373,543.78
  5. Step 5: Solve for x
    x = 1,552,373,543.78/18,623.67
  6. Step 6: Final answer
    x = 83,354.86

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.