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Finding the Third Proportional to 10,832 and 15,216

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Solution

The third proportional to 10,832 and 15,216 is: 21,374.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,832 : 15,216 = 15,216 : x
  2. Step 2: Convert to fraction form
    10,832/15,216 = 15,216/x
  3. Step 3: Cross multiply
    10,832x = 15,216 × 15,216
  4. Step 4: Simplify right side
    10,832x = 231,526,656
  5. Step 5: Solve for x
    x = 231,526,656/10,832
  6. Step 6: Final answer
    x = 21,374.32

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.