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Finding the Third Proportional to 713.25 and 981

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Solution

The third proportional to 713.25 and 981 is: 1,349.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    713.25 : 981 = 981 : x
  2. Step 2: Convert to fraction form
    713.25/981 = 981/x
  3. Step 3: Cross multiply
    713.25x = 981 × 981
  4. Step 4: Simplify right side
    713.25x = 962,361
  5. Step 5: Solve for x
    x = 962,361/713.25
  6. Step 6: Final answer
    x = 1,349.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.