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Finding the Third Proportional to 3,418.50 and 7,017

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Solution

The third proportional to 3,418.50 and 7,017 is: 14,403.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.50 : 7,017 = 7,017 : x
  2. Step 2: Convert to fraction form
    3,418.50/7,017 = 7,017/x
  3. Step 3: Cross multiply
    3,418.50x = 7,017 × 7,017
  4. Step 4: Simplify right side
    3,418.50x = 49,238,289
  5. Step 5: Solve for x
    x = 49,238,289/3,418.50
  6. Step 6: Final answer
    x = 14,403.48

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.