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Finding the Third Proportional to 3,717 and 4,284

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Solution

The third proportional to 3,717 and 4,284 is: 4,937.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,717 : 4,284 = 4,284 : x
  2. Step 2: Convert to fraction form
    3,717/4,284 = 4,284/x
  3. Step 3: Cross multiply
    3,717x = 4,284 × 4,284
  4. Step 4: Simplify right side
    3,717x = 18,352,656
  5. Step 5: Solve for x
    x = 18,352,656/3,717
  6. Step 6: Final answer
    x = 4,937.49

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.