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Finding the Fourth Proportional to 4,890.27, 7,339.35 and 2,550.99

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Solution

The fourth proportional to 4,890.27, 7,339.35 and 2,550.99 is: 3,828.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,890.27 : 7,339.35 = 2,550.99 : x
  2. Step 2: Convert to fraction form
    4,890.27/7,339.35 = 2,550.99/x
  3. Step 3: Cross multiply
    4,890.27x = 7,339.35 × 2,550.99
  4. Step 4: Simplify right side
    4,890.27x = 18,722,608.46
  5. Step 5: Solve for x
    x = 18,722,608.46/4,890.27
  6. Step 6: Final answer
    x = 3,828.54

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1.5x scale

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.