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Finding the Third Proportional to 4,406 and 8,260

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Solution

The third proportional to 4,406 and 8,260 is: 15,485.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,406 : 8,260 = 8,260 : x
  2. Step 2: Convert to fraction form
    4,406/8,260 = 8,260/x
  3. Step 3: Cross multiply
    4,406x = 8,260 × 8,260
  4. Step 4: Simplify right side
    4,406x = 68,227,600
  5. Step 5: Solve for x
    x = 68,227,600/4,406
  6. Step 6: Final answer
    x = 15,485.16

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.