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Finding the Third Proportional to 5,380 and 9,512

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Solution

The third proportional to 5,380 and 9,512 is: 16,817.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380 : 9,512 = 9,512 : x
  2. Step 2: Convert to fraction form
    5,380/9,512 = 9,512/x
  3. Step 3: Cross multiply
    5,380x = 9,512 × 9,512
  4. Step 4: Simplify right side
    5,380x = 90,478,144
  5. Step 5: Solve for x
    x = 90,478,144/5,380
  6. Step 6: Final answer
    x = 16,817.50

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.