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Finding the Third Proportional to 16,267.50 and 20,655

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Solution

The third proportional to 16,267.50 and 20,655 is: 26,225.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,267.50 : 20,655 = 20,655 : x
  2. Step 2: Convert to fraction form
    16,267.50/20,655 = 20,655/x
  3. Step 3: Cross multiply
    16,267.50x = 20,655 × 20,655
  4. Step 4: Simplify right side
    16,267.50x = 426,629,025
  5. Step 5: Solve for x
    x = 426,629,025/16,267.50
  6. Step 6: Final answer
    x = 26,225.85

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.