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Finding the Third Proportional to 3,591 and 5,267.50

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Solution

The third proportional to 3,591 and 5,267.50 is: 7,726.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591 : 5,267.50 = 5,267.50 : x
  2. Step 2: Convert to fraction form
    3,591/5,267.50 = 5,267.50/x
  3. Step 3: Cross multiply
    3,591x = 5,267.50 × 5,267.50
  4. Step 4: Simplify right side
    3,591x = 27,746,556.25
  5. Step 5: Solve for x
    x = 27,746,556.25/3,591
  6. Step 6: Final answer
    x = 7,726.69

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.