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Finding the Third Proportional to 6,286 and 9,429

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Solution

The third proportional to 6,286 and 9,429 is: 14,143.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,286 : 9,429 = 9,429 : x
  2. Step 2: Convert to fraction form
    6,286/9,429 = 9,429/x
  3. Step 3: Cross multiply
    6,286x = 9,429 × 9,429
  4. Step 4: Simplify right side
    6,286x = 88,906,041
  5. Step 5: Solve for x
    x = 88,906,041/6,286
  6. Step 6: Final answer
    x = 14,143.50

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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.