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Finding the Third Proportional to 3,388 and 4,976

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Solution

The third proportional to 3,388 and 4,976 is: 7,308.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,388 : 4,976 = 4,976 : x
  2. Step 2: Convert to fraction form
    3,388/4,976 = 4,976/x
  3. Step 3: Cross multiply
    3,388x = 4,976 × 4,976
  4. Step 4: Simplify right side
    3,388x = 24,760,576
  5. Step 5: Solve for x
    x = 24,760,576/3,388
  6. Step 6: Final answer
    x = 7,308.32

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.