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Finding the Third Proportional to 966 and 1,489.50

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Solution

The third proportional to 966 and 1,489.50 is: 2,296.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    966 : 1,489.50 = 1,489.50 : x
  2. Step 2: Convert to fraction form
    966/1,489.50 = 1,489.50/x
  3. Step 3: Cross multiply
    966x = 1,489.50 × 1,489.50
  4. Step 4: Simplify right side
    966x = 2,218,610.25
  5. Step 5: Solve for x
    x = 2,218,610.25/966
  6. Step 6: Final answer
    x = 2,296.70

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.