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Finding the Third Proportional to 959.81 and 1,722

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Solution

The third proportional to 959.81 and 1,722 is: 3,089.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    959.81 : 1,722 = 1,722 : x
  2. Step 2: Convert to fraction form
    959.81/1,722 = 1,722/x
  3. Step 3: Cross multiply
    959.81x = 1,722 × 1,722
  4. Step 4: Simplify right side
    959.81x = 2,965,284
  5. Step 5: Solve for x
    x = 2,965,284/959.81
  6. Step 6: Final answer
    x = 3,089.44

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Why These Related Problems?

These problems maintain the same ratio (1.79) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.