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Finding the Third Proportional to 4,809 and 5,187

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Solution

The third proportional to 4,809 and 5,187 is: 5,594.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,809 : 5,187 = 5,187 : x
  2. Step 2: Convert to fraction form
    4,809/5,187 = 5,187/x
  3. Step 3: Cross multiply
    4,809x = 5,187 × 5,187
  4. Step 4: Simplify right side
    4,809x = 26,904,969
  5. Step 5: Solve for x
    x = 26,904,969/4,809
  6. Step 6: Final answer
    x = 5,594.71

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.