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Finding the Third Proportional to 13,543.50 and 20,802

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Solution

The third proportional to 13,543.50 and 20,802 is: 31,950.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.50 : 20,802 = 20,802 : x
  2. Step 2: Convert to fraction form
    13,543.50/20,802 = 20,802/x
  3. Step 3: Cross multiply
    13,543.50x = 20,802 × 20,802
  4. Step 4: Simplify right side
    13,543.50x = 432,723,204
  5. Step 5: Solve for x
    x = 432,723,204/13,543.50
  6. Step 6: Final answer
    x = 31,950.62

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.