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Finding the Third Proportional to 6,960 and 15,216

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Solution

The third proportional to 6,960 and 15,216 is: 33,265.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,960 : 15,216 = 15,216 : x
  2. Step 2: Convert to fraction form
    6,960/15,216 = 15,216/x
  3. Step 3: Cross multiply
    6,960x = 15,216 × 15,216
  4. Step 4: Simplify right side
    6,960x = 231,526,656
  5. Step 5: Solve for x
    x = 231,526,656/6,960
  6. Step 6: Final answer
    x = 33,265.32

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.