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Finding the Third Proportional to 6,992 and 15,280

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Solution

The third proportional to 6,992 and 15,280 is: 33,392.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,992 : 15,280 = 15,280 : x
  2. Step 2: Convert to fraction form
    6,992/15,280 = 15,280/x
  3. Step 3: Cross multiply
    6,992x = 15,280 × 15,280
  4. Step 4: Simplify right side
    6,992x = 233,478,400
  5. Step 5: Solve for x
    x = 233,478,400/6,992
  6. Step 6: Final answer
    x = 33,392.22

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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.