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Finding the Third Proportional to 7,132.05 and 15,391.76

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Solution

The third proportional to 7,132.05 and 15,391.76 is: 33,217.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,132.05 : 15,391.76 = 15,391.76 : x
  2. Step 2: Convert to fraction form
    7,132.05/15,391.76 = 15,391.76/x
  3. Step 3: Cross multiply
    7,132.05x = 15,391.76 × 15,391.76
  4. Step 4: Simplify right side
    7,132.05x = 236,906,208.56
  5. Step 5: Solve for x
    x = 236,906,208.56/7,132.05
  6. Step 6: Final answer
    x = 33,217.14

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.