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Finding the Fourth Proportional to 20,028, 30,042.41 and 6,177

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Solution

The fourth proportional to 20,028, 30,042.41 and 6,177 is: 9,265.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028 : 30,042.41 = 6,177 : x
  2. Step 2: Convert to fraction form
    20,028/30,042.41 = 6,177/x
  3. Step 3: Cross multiply
    20,028x = 30,042.41 × 6,177
  4. Step 4: Simplify right side
    20,028x = 185,571,935.69
  5. Step 5: Solve for x
    x = 185,571,935.69/20,028
  6. Step 6: Final answer
    x = 9,265.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.