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Finding the Third Proportional to 262.75 and 613.75

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Solution

The third proportional to 262.75 and 613.75 is: 1,433.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    262.75 : 613.75 = 613.75 : x
  2. Step 2: Convert to fraction form
    262.75/613.75 = 613.75/x
  3. Step 3: Cross multiply
    262.75x = 613.75 × 613.75
  4. Step 4: Simplify right side
    262.75x = 376,689.06
  5. Step 5: Solve for x
    x = 376,689.06/262.75
  6. Step 6: Final answer
    x = 1,433.64

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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.