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Finding the Third Proportional to 409.75 and 959.88

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Solution

The third proportional to 409.75 and 959.88 is: 2,248.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    409.75 : 959.88 = 959.88 : x
  2. Step 2: Convert to fraction form
    409.75/959.88 = 959.88/x
  3. Step 3: Cross multiply
    409.75x = 959.88 × 959.88
  4. Step 4: Simplify right side
    409.75x = 921,360.02
  5. Step 5: Solve for x
    x = 921,360.02/409.75
  6. Step 6: Final answer
    x = 2,248.59

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.