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Finding the Third Proportional to 959.44 and 1,990.88

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Solution

The third proportional to 959.44 and 1,990.88 is: 4,131.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    959.44 : 1,990.88 = 1,990.88 : x
  2. Step 2: Convert to fraction form
    959.44/1,990.88 = 1,990.88/x
  3. Step 3: Cross multiply
    959.44x = 1,990.88 × 1,990.88
  4. Step 4: Simplify right side
    959.44x = 3,963,583.27
  5. Step 5: Solve for x
    x = 3,963,583.27/959.44
  6. Step 6: Final answer
    x = 4,131.15

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.