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Finding the Fourth Proportional to 5,890.59, 8,129.15 and 3,238.05

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Solution

The fourth proportional to 5,890.59, 8,129.15 and 3,238.05 is: 4,468.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,890.59 : 8,129.15 = 3,238.05 : x
  2. Step 2: Convert to fraction form
    5,890.59/8,129.15 = 3,238.05/x
  3. Step 3: Cross multiply
    5,890.59x = 8,129.15 × 3,238.05
  4. Step 4: Simplify right side
    5,890.59x = 26,322,593.18
  5. Step 5: Solve for x
    x = 26,322,593.18/5,890.59
  6. Step 6: Final answer
    x = 4,468.59

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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.