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Finding the Third Proportional to 18,021.50 and 41,480

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Solution

The third proportional to 18,021.50 and 41,480 is: 95,474.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,021.50 : 41,480 = 41,480 : x
  2. Step 2: Convert to fraction form
    18,021.50/41,480 = 41,480/x
  3. Step 3: Cross multiply
    18,021.50x = 41,480 × 41,480
  4. Step 4: Simplify right side
    18,021.50x = 1,720,590,400
  5. Step 5: Solve for x
    x = 1,720,590,400/18,021.50
  6. Step 6: Final answer
    x = 95,474.32

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Why These Related Problems?

These problems maintain the same ratio (2.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.