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Finding the Fourth Proportional to 6,028, 9,039.78 and 2,078.20

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Solution

The fourth proportional to 6,028, 9,039.78 and 2,078.20 is: 3,116.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,028 : 9,039.78 = 2,078.20 : x
  2. Step 2: Convert to fraction form
    6,028/9,039.78 = 2,078.20/x
  3. Step 3: Cross multiply
    6,028x = 9,039.78 × 2,078.20
  4. Step 4: Simplify right side
    6,028x = 18,786,470.80
  5. Step 5: Solve for x
    x = 18,786,470.80/6,028
  6. Step 6: Final answer
    x = 3,116.53

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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.