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Finding the Third Proportional to 20,449.88 and 30,000.75

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Solution

The third proportional to 20,449.88 and 30,000.75 is: 44,012.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,449.88 : 30,000.75 = 30,000.75 : x
  2. Step 2: Convert to fraction form
    20,449.88/30,000.75 = 30,000.75/x
  3. Step 3: Cross multiply
    20,449.88x = 30,000.75 × 30,000.75
  4. Step 4: Simplify right side
    20,449.88x = 900,045,000.56
  5. Step 5: Solve for x
    x = 900,045,000.56/20,449.88
  6. Step 6: Final answer
    x = 44,012.25

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.