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Finding the Third Proportional to 7,042 and 15,200

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Solution

The third proportional to 7,042 and 15,200 is: 32,808.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,042 : 15,200 = 15,200 : x
  2. Step 2: Convert to fraction form
    7,042/15,200 = 15,200/x
  3. Step 3: Cross multiply
    7,042x = 15,200 × 15,200
  4. Step 4: Simplify right side
    7,042x = 231,040,000
  5. Step 5: Solve for x
    x = 231,040,000/7,042
  6. Step 6: Final answer
    x = 32,808.86

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.