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Finding the Third Proportional to 9,600 and 15,760

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Solution

The third proportional to 9,600 and 15,760 is: 25,872.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,600 : 15,760 = 15,760 : x
  2. Step 2: Convert to fraction form
    9,600/15,760 = 15,760/x
  3. Step 3: Cross multiply
    9,600x = 15,760 × 15,760
  4. Step 4: Simplify right side
    9,600x = 248,377,600
  5. Step 5: Solve for x
    x = 248,377,600/9,600
  6. Step 6: Final answer
    x = 25,872.67

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.