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Finding the Third Proportional to 18,855.70 and 27,957.38

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Solution

The third proportional to 18,855.70 and 27,957.38 is: 41,452.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,855.70 : 27,957.38 = 27,957.38 : x
  2. Step 2: Convert to fraction form
    18,855.70/27,957.38 = 27,957.38/x
  3. Step 3: Cross multiply
    18,855.70x = 27,957.38 × 27,957.38
  4. Step 4: Simplify right side
    18,855.70x = 781,614,816.89
  5. Step 5: Solve for x
    x = 781,614,816.89/18,855.70
  6. Step 6: Final answer
    x = 41,452.44

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.