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Finding the Third Proportional to 1,981 and 2,284

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Solution

The third proportional to 1,981 and 2,284 is: 2,633.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981 : 2,284 = 2,284 : x
  2. Step 2: Convert to fraction form
    1,981/2,284 = 2,284/x
  3. Step 3: Cross multiply
    1,981x = 2,284 × 2,284
  4. Step 4: Simplify right side
    1,981x = 5,216,656
  5. Step 5: Solve for x
    x = 5,216,656/1,981
  6. Step 6: Final answer
    x = 2,633.34

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.