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Finding the Third Proportional to 931 and 2,196

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Solution

The third proportional to 931 and 2,196 is: 5,179.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    931 : 2,196 = 2,196 : x
  2. Step 2: Convert to fraction form
    931/2,196 = 2,196/x
  3. Step 3: Cross multiply
    931x = 2,196 × 2,196
  4. Step 4: Simplify right side
    931x = 4,822,416
  5. Step 5: Solve for x
    x = 4,822,416/931
  6. Step 6: Final answer
    x = 5,179.82

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.