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Finding the Fourth Proportional to 7,250.52, 10,879.20 and 2,866.80

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Solution

The fourth proportional to 7,250.52, 10,879.20 and 2,866.80 is: 4,301.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,250.52 : 10,879.20 = 2,866.80 : x
  2. Step 2: Convert to fraction form
    7,250.52/10,879.20 = 2,866.80/x
  3. Step 3: Cross multiply
    7,250.52x = 10,879.20 × 2,866.80
  4. Step 4: Simplify right side
    7,250.52x = 31,188,490.56
  5. Step 5: Solve for x
    x = 31,188,490.56/7,250.52
  6. Step 6: Final answer
    x = 4,301.55

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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.