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Finding the Fourth Proportional to 6,079.60, 8,390.82 and 4,589.20

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Solution

The fourth proportional to 6,079.60, 8,390.82 and 4,589.20 is: 6,333.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,079.60 : 8,390.82 = 4,589.20 : x
  2. Step 2: Convert to fraction form
    6,079.60/8,390.82 = 4,589.20/x
  3. Step 3: Cross multiply
    6,079.60x = 8,390.82 × 4,589.20
  4. Step 4: Simplify right side
    6,079.60x = 38,507,151.14
  5. Step 5: Solve for x
    x = 38,507,151.14/6,079.60
  6. Step 6: Final answer
    x = 6,333.83

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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.