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Finding the Fourth Proportional to 5,879.12, 8,805.24 and 3,820.88

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Solution

The fourth proportional to 5,879.12, 8,805.24 and 3,820.88 is: 5,722.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,879.12 : 8,805.24 = 3,820.88 : x
  2. Step 2: Convert to fraction form
    5,879.12/8,805.24 = 3,820.88/x
  3. Step 3: Cross multiply
    5,879.12x = 8,805.24 × 3,820.88
  4. Step 4: Simplify right side
    5,879.12x = 33,643,765.41
  5. Step 5: Solve for x
    x = 33,643,765.41/5,879.12
  6. Step 6: Final answer
    x = 5,722.59

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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.