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Finding the Third Proportional to 5,660 and 8,747

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Solution

The third proportional to 5,660 and 8,747 is: 13,517.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,660 : 8,747 = 8,747 : x
  2. Step 2: Convert to fraction form
    5,660/8,747 = 8,747/x
  3. Step 3: Cross multiply
    5,660x = 8,747 × 8,747
  4. Step 4: Simplify right side
    5,660x = 76,510,009
  5. Step 5: Solve for x
    x = 76,510,009/5,660
  6. Step 6: Final answer
    x = 13,517.67

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.