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Finding the Third Proportional to 4,812 and 11,328

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Solution

The third proportional to 4,812 and 11,328 is: 26,667.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812 : 11,328 = 11,328 : x
  2. Step 2: Convert to fraction form
    4,812/11,328 = 11,328/x
  3. Step 3: Cross multiply
    4,812x = 11,328 × 11,328
  4. Step 4: Simplify right side
    4,812x = 128,323,584
  5. Step 5: Solve for x
    x = 128,323,584/4,812
  6. Step 6: Final answer
    x = 26,667.41

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Why These Related Problems?

These problems maintain the same ratio (2.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.