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Finding the Third Proportional to 6,942.75 and 15,270

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Solution

The third proportional to 6,942.75 and 15,270 is: 33,585.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.75 : 15,270 = 15,270 : x
  2. Step 2: Convert to fraction form
    6,942.75/15,270 = 15,270/x
  3. Step 3: Cross multiply
    6,942.75x = 15,270 × 15,270
  4. Step 4: Simplify right side
    6,942.75x = 233,172,900
  5. Step 5: Solve for x
    x = 233,172,900/6,942.75
  6. Step 6: Final answer
    x = 33,585.09

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.