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Finding the Third Proportional to 8,315.50 and 18,194

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Solution

The third proportional to 8,315.50 and 18,194 is: 39,807.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.50 : 18,194 = 18,194 : x
  2. Step 2: Convert to fraction form
    8,315.50/18,194 = 18,194/x
  3. Step 3: Cross multiply
    8,315.50x = 18,194 × 18,194
  4. Step 4: Simplify right side
    8,315.50x = 331,021,636
  5. Step 5: Solve for x
    x = 331,021,636/8,315.50
  6. Step 6: Final answer
    x = 39,807.78

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.