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Finding the Third Proportional to 4,388 and 7,016

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Solution

The third proportional to 4,388 and 7,016 is: 11,217.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,388 : 7,016 = 7,016 : x
  2. Step 2: Convert to fraction form
    4,388/7,016 = 7,016/x
  3. Step 3: Cross multiply
    4,388x = 7,016 × 7,016
  4. Step 4: Simplify right side
    4,388x = 49,224,256
  5. Step 5: Solve for x
    x = 49,224,256/4,388
  6. Step 6: Final answer
    x = 11,217.93

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.