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Finding the Third Proportional to 18,790.50 and 29,136

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Solution

The third proportional to 18,790.50 and 29,136 is: 45,177.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790.50 : 29,136 = 29,136 : x
  2. Step 2: Convert to fraction form
    18,790.50/29,136 = 29,136/x
  3. Step 3: Cross multiply
    18,790.50x = 29,136 × 29,136
  4. Step 4: Simplify right side
    18,790.50x = 848,906,496
  5. Step 5: Solve for x
    x = 848,906,496/18,790.50
  6. Step 6: Final answer
    x = 45,177.43

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.