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Finding the Third Proportional to 20,266.50 and 33,015

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Solution

The third proportional to 20,266.50 and 33,015 is: 53,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.50 : 33,015 = 33,015 : x
  2. Step 2: Convert to fraction form
    20,266.50/33,015 = 33,015/x
  3. Step 3: Cross multiply
    20,266.50x = 33,015 × 33,015
  4. Step 4: Simplify right side
    20,266.50x = 1,089,990,225
  5. Step 5: Solve for x
    x = 1,089,990,225/20,266.50
  6. Step 6: Final answer
    x = 53,782.85

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Why These Related Problems?

These problems maintain the same ratio (1.63) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.