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Finding the Third Proportional to 31,224 and 47,232

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Solution

The third proportional to 31,224 and 47,232 is: 71,447.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,224 : 47,232 = 47,232 : x
  2. Step 2: Convert to fraction form
    31,224/47,232 = 47,232/x
  3. Step 3: Cross multiply
    31,224x = 47,232 × 47,232
  4. Step 4: Simplify right side
    31,224x = 2,230,861,824
  5. Step 5: Solve for x
    x = 2,230,861,824/31,224
  6. Step 6: Final answer
    x = 71,447.02

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.