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Finding the Third Proportional to 3,188 and 4,258

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Solution

The third proportional to 3,188 and 4,258 is: 5,687.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,188 : 4,258 = 4,258 : x
  2. Step 2: Convert to fraction form
    3,188/4,258 = 4,258/x
  3. Step 3: Cross multiply
    3,188x = 4,258 × 4,258
  4. Step 4: Simplify right side
    3,188x = 18,130,564
  5. Step 5: Solve for x
    x = 18,130,564/3,188
  6. Step 6: Final answer
    x = 5,687.13

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.