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Finding the Third Proportional to 18,690 and 41,064

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Solution

The third proportional to 18,690 and 41,064 is: 90,222.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,690 : 41,064 = 41,064 : x
  2. Step 2: Convert to fraction form
    18,690/41,064 = 41,064/x
  3. Step 3: Cross multiply
    18,690x = 41,064 × 41,064
  4. Step 4: Simplify right side
    18,690x = 1,686,252,096
  5. Step 5: Solve for x
    x = 1,686,252,096/18,690
  6. Step 6: Final answer
    x = 90,222.16

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.