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Finding the Third Proportional to 3,118.50 and 4,201

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Solution

The third proportional to 3,118.50 and 4,201 is: 5,659.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.50 : 4,201 = 4,201 : x
  2. Step 2: Convert to fraction form
    3,118.50/4,201 = 4,201/x
  3. Step 3: Cross multiply
    3,118.50x = 4,201 × 4,201
  4. Step 4: Simplify right side
    3,118.50x = 17,648,401
  5. Step 5: Solve for x
    x = 17,648,401/3,118.50
  6. Step 6: Final answer
    x = 5,659.26

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.