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Finding the Third Proportional to 722.25 and 943.31

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Solution

The third proportional to 722.25 and 943.31 is: 1,232.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    722.25 : 943.31 = 943.31 : x
  2. Step 2: Convert to fraction form
    722.25/943.31 = 943.31/x
  3. Step 3: Cross multiply
    722.25x = 943.31 × 943.31
  4. Step 4: Simplify right side
    722.25x = 889,838.47
  5. Step 5: Solve for x
    x = 889,838.47/722.25
  6. Step 6: Final answer
    x = 1,232.04

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.