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Finding the Third Proportional to 3,404 and 5,260.50

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Solution

The third proportional to 3,404 and 5,260.50 is: 8,129.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,404 : 5,260.50 = 5,260.50 : x
  2. Step 2: Convert to fraction form
    3,404/5,260.50 = 5,260.50/x
  3. Step 3: Cross multiply
    3,404x = 5,260.50 × 5,260.50
  4. Step 4: Simplify right side
    3,404x = 27,672,860.25
  5. Step 5: Solve for x
    x = 27,672,860.25/3,404
  6. Step 6: Final answer
    x = 8,129.51

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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.