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Finding the Third Proportional to 9,541.50 and 20,439

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Solution

The third proportional to 9,541.50 and 20,439 is: 43,782.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,541.50 : 20,439 = 20,439 : x
  2. Step 2: Convert to fraction form
    9,541.50/20,439 = 20,439/x
  3. Step 3: Cross multiply
    9,541.50x = 20,439 × 20,439
  4. Step 4: Simplify right side
    9,541.50x = 417,752,721
  5. Step 5: Solve for x
    x = 417,752,721/9,541.50
  6. Step 6: Final answer
    x = 43,782.71

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.