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Finding the Third Proportional to 20,166.75 and 29,520

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Solution

The third proportional to 20,166.75 and 29,520 is: 43,211.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,166.75 : 29,520 = 29,520 : x
  2. Step 2: Convert to fraction form
    20,166.75/29,520 = 29,520/x
  3. Step 3: Cross multiply
    20,166.75x = 29,520 × 29,520
  4. Step 4: Simplify right side
    20,166.75x = 871,430,400
  5. Step 5: Solve for x
    x = 871,430,400/20,166.75
  6. Step 6: Final answer
    x = 43,211.25

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.