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Finding the Third Proportional to 296.25 and 651.75

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Solution

The third proportional to 296.25 and 651.75 is: 1,433.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.25 : 651.75 = 651.75 : x
  2. Step 2: Convert to fraction form
    296.25/651.75 = 651.75/x
  3. Step 3: Cross multiply
    296.25x = 651.75 × 651.75
  4. Step 4: Simplify right side
    296.25x = 424,778.06
  5. Step 5: Solve for x
    x = 424,778.06/296.25
  6. Step 6: Final answer
    x = 1,433.85

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.