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Finding the Third Proportional to 20,472.75 and 47,223

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Solution

The third proportional to 20,472.75 and 47,223 is: 108,925.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,472.75 : 47,223 = 47,223 : x
  2. Step 2: Convert to fraction form
    20,472.75/47,223 = 47,223/x
  3. Step 3: Cross multiply
    20,472.75x = 47,223 × 47,223
  4. Step 4: Simplify right side
    20,472.75x = 2,230,011,729
  5. Step 5: Solve for x
    x = 2,230,011,729/20,472.75
  6. Step 6: Final answer
    x = 108,925.85

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Why These Related Problems?

These problems maintain the same ratio (2.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.