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Finding the Third Proportional to 3,291.50 and 4,525

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Solution

The third proportional to 3,291.50 and 4,525 is: 6,220.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,291.50 : 4,525 = 4,525 : x
  2. Step 2: Convert to fraction form
    3,291.50/4,525 = 4,525/x
  3. Step 3: Cross multiply
    3,291.50x = 4,525 × 4,525
  4. Step 4: Simplify right side
    3,291.50x = 20,475,625
  5. Step 5: Solve for x
    x = 20,475,625/3,291.50
  6. Step 6: Final answer
    x = 6,220.76

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.