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Finding the Third Proportional to 11,383.50 and 15,549

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Solution

The third proportional to 11,383.50 and 15,549 is: 21,238.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,383.50 : 15,549 = 15,549 : x
  2. Step 2: Convert to fraction form
    11,383.50/15,549 = 15,549/x
  3. Step 3: Cross multiply
    11,383.50x = 15,549 × 15,549
  4. Step 4: Simplify right side
    11,383.50x = 241,771,401
  5. Step 5: Solve for x
    x = 241,771,401/11,383.50
  6. Step 6: Final answer
    x = 21,238.76

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.