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Finding the Third Proportional to 7,144 and 9,492

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Solution

The third proportional to 7,144 and 9,492 is: 12,611.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,144 : 9,492 = 9,492 : x
  2. Step 2: Convert to fraction form
    7,144/9,492 = 9,492/x
  3. Step 3: Cross multiply
    7,144x = 9,492 × 9,492
  4. Step 4: Simplify right side
    7,144x = 90,098,064
  5. Step 5: Solve for x
    x = 90,098,064/7,144
  6. Step 6: Final answer
    x = 12,611.71

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.