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Finding the Third Proportional to 3,173 and 4,198.50

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Solution

The third proportional to 3,173 and 4,198.50 is: 5,555.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173 : 4,198.50 = 4,198.50 : x
  2. Step 2: Convert to fraction form
    3,173/4,198.50 = 4,198.50/x
  3. Step 3: Cross multiply
    3,173x = 4,198.50 × 4,198.50
  4. Step 4: Simplify right side
    3,173x = 17,627,402.25
  5. Step 5: Solve for x
    x = 17,627,402.25/3,173
  6. Step 6: Final answer
    x = 5,555.44

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.