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Finding the Third Proportional to 21,489.75 and 32,865.75

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Solution

The third proportional to 21,489.75 and 32,865.75 is: 50,263.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.75 : 32,865.75 = 32,865.75 : x
  2. Step 2: Convert to fraction form
    21,489.75/32,865.75 = 32,865.75/x
  3. Step 3: Cross multiply
    21,489.75x = 32,865.75 × 32,865.75
  4. Step 4: Simplify right side
    21,489.75x = 1,080,157,523.06
  5. Step 5: Solve for x
    x = 1,080,157,523.06/21,489.75
  6. Step 6: Final answer
    x = 50,263.85

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.