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Finding the Third Proportional to 18,553.50 and 25,953.75

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Solution

The third proportional to 18,553.50 and 25,953.75 is: 36,305.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.50 : 25,953.75 = 25,953.75 : x
  2. Step 2: Convert to fraction form
    18,553.50/25,953.75 = 25,953.75/x
  3. Step 3: Cross multiply
    18,553.50x = 25,953.75 × 25,953.75
  4. Step 4: Simplify right side
    18,553.50x = 673,597,139.06
  5. Step 5: Solve for x
    x = 673,597,139.06/18,553.50
  6. Step 6: Final answer
    x = 36,305.66

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.