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Finding the Third Proportional to 3,317 and 4,975

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Solution

The third proportional to 3,317 and 4,975 is: 7,461.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,317 : 4,975 = 4,975 : x
  2. Step 2: Convert to fraction form
    3,317/4,975 = 4,975/x
  3. Step 3: Cross multiply
    3,317x = 4,975 × 4,975
  4. Step 4: Simplify right side
    3,317x = 24,750,625
  5. Step 5: Solve for x
    x = 24,750,625/3,317
  6. Step 6: Final answer
    x = 7,461.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.