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Finding the Third Proportional to 13,213.50 and 28,356

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Solution

The third proportional to 13,213.50 and 28,356 is: 60,851.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.50 : 28,356 = 28,356 : x
  2. Step 2: Convert to fraction form
    13,213.50/28,356 = 28,356/x
  3. Step 3: Cross multiply
    13,213.50x = 28,356 × 28,356
  4. Step 4: Simplify right side
    13,213.50x = 804,062,736
  5. Step 5: Solve for x
    x = 804,062,736/13,213.50
  6. Step 6: Final answer
    x = 60,851.61

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.