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Finding the Third Proportional to 617.75 and 1,476.75

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Solution

The third proportional to 617.75 and 1,476.75 is: 3,530.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.75 : 1,476.75 = 1,476.75 : x
  2. Step 2: Convert to fraction form
    617.75/1,476.75 = 1,476.75/x
  3. Step 3: Cross multiply
    617.75x = 1,476.75 × 1,476.75
  4. Step 4: Simplify right side
    617.75x = 2,180,790.56
  5. Step 5: Solve for x
    x = 2,180,790.56/617.75
  6. Step 6: Final answer
    x = 3,530.22

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Why These Related Problems?

These problems maintain the same ratio (2.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.