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Finding the Third Proportional to 5,150 and 5,609

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Solution

The third proportional to 5,150 and 5,609 is: 6,108.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,150 : 5,609 = 5,609 : x
  2. Step 2: Convert to fraction form
    5,150/5,609 = 5,609/x
  3. Step 3: Cross multiply
    5,150x = 5,609 × 5,609
  4. Step 4: Simplify right side
    5,150x = 31,460,881
  5. Step 5: Solve for x
    x = 31,460,881/5,150
  6. Step 6: Final answer
    x = 6,108.91

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.