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Finding the Third Proportional to 4,231 and 6,347

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Solution

The third proportional to 4,231 and 6,347 is: 9,521.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,231 : 6,347 = 6,347 : x
  2. Step 2: Convert to fraction form
    4,231/6,347 = 6,347/x
  3. Step 3: Cross multiply
    4,231x = 6,347 × 6,347
  4. Step 4: Simplify right side
    4,231x = 40,284,409
  5. Step 5: Solve for x
    x = 40,284,409/4,231
  6. Step 6: Final answer
    x = 9,521.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.