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Finding the Third Proportional to 5,202 and 7,910

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Solution

The third proportional to 5,202 and 7,910 is: 12,027.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,202 : 7,910 = 7,910 : x
  2. Step 2: Convert to fraction form
    5,202/7,910 = 7,910/x
  3. Step 3: Cross multiply
    5,202x = 7,910 × 7,910
  4. Step 4: Simplify right side
    5,202x = 62,568,100
  5. Step 5: Solve for x
    x = 62,568,100/5,202
  6. Step 6: Final answer
    x = 12,027.70

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.