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Finding the Fourth Proportional to 5,778.45, 7,974.09 and 3,260.52

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Solution

The fourth proportional to 5,778.45, 7,974.09 and 3,260.52 is: 4,499.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,778.45 : 7,974.09 = 3,260.52 : x
  2. Step 2: Convert to fraction form
    5,778.45/7,974.09 = 3,260.52/x
  3. Step 3: Cross multiply
    5,778.45x = 7,974.09 × 3,260.52
  4. Step 4: Simplify right side
    5,778.45x = 25,999,679.93
  5. Step 5: Solve for x
    x = 25,999,679.93/5,778.45
  6. Step 6: Final answer
    x = 4,499.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.