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Finding the Third Proportional to 8,236.50 and 12,351

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Solution

The third proportional to 8,236.50 and 12,351 is: 18,520.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.50 : 12,351 = 12,351 : x
  2. Step 2: Convert to fraction form
    8,236.50/12,351 = 12,351/x
  3. Step 3: Cross multiply
    8,236.50x = 12,351 × 12,351
  4. Step 4: Simplify right side
    8,236.50x = 152,547,201
  5. Step 5: Solve for x
    x = 152,547,201/8,236.50
  6. Step 6: Final answer
    x = 18,520.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.