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Finding the Third Proportional to 2,196 and 3,591

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Solution

The third proportional to 2,196 and 3,591 is: 5,872.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,196 : 3,591 = 3,591 : x
  2. Step 2: Convert to fraction form
    2,196/3,591 = 3,591/x
  3. Step 3: Cross multiply
    2,196x = 3,591 × 3,591
  4. Step 4: Simplify right side
    2,196x = 12,895,281
  5. Step 5: Solve for x
    x = 12,895,281/2,196
  6. Step 6: Final answer
    x = 5,872.17

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Why These Related Problems?

These problems maintain the same ratio (1.64) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.