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Finding the Third Proportional to 7,472 and 11,944

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Solution

The third proportional to 7,472 and 11,944 is: 19,092.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,472 : 11,944 = 11,944 : x
  2. Step 2: Convert to fraction form
    7,472/11,944 = 11,944/x
  3. Step 3: Cross multiply
    7,472x = 11,944 × 11,944
  4. Step 4: Simplify right side
    7,472x = 142,659,136
  5. Step 5: Solve for x
    x = 142,659,136/7,472
  6. Step 6: Final answer
    x = 19,092.50

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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.