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Finding the Third Proportional to 445.75 and 959.75

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Solution

The third proportional to 445.75 and 959.75 is: 2,066.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.75 : 959.75 = 959.75 : x
  2. Step 2: Convert to fraction form
    445.75/959.75 = 959.75/x
  3. Step 3: Cross multiply
    445.75x = 959.75 × 959.75
  4. Step 4: Simplify right side
    445.75x = 921,120.06
  5. Step 5: Solve for x
    x = 921,120.06/445.75
  6. Step 6: Final answer
    x = 2,066.45

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.