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Finding the Third Proportional to 18,136.13 and 25,685.44

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Solution

The third proportional to 18,136.13 and 25,685.44 is: 36,377.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136.13 : 25,685.44 = 25,685.44 : x
  2. Step 2: Convert to fraction form
    18,136.13/25,685.44 = 25,685.44/x
  3. Step 3: Cross multiply
    18,136.13x = 25,685.44 × 25,685.44
  4. Step 4: Simplify right side
    18,136.13x = 659,741,699.57
  5. Step 5: Solve for x
    x = 659,741,699.57/18,136.13
  6. Step 6: Final answer
    x = 36,377.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.