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Finding the Third Proportional to 484 and 981

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Solution

The third proportional to 484 and 981 is: 1,988.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    484 : 981 = 981 : x
  2. Step 2: Convert to fraction form
    484/981 = 981/x
  3. Step 3: Cross multiply
    484x = 981 × 981
  4. Step 4: Simplify right side
    484x = 962,361
  5. Step 5: Solve for x
    x = 962,361/484
  6. Step 6: Final answer
    x = 1,988.35

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.