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Finding the Fourth Proportional to 4,540.64, 6,824.55 and 3,765.74

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Solution

The fourth proportional to 4,540.64, 6,824.55 and 3,765.74 is: 5,659.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,540.64 : 6,824.55 = 3,765.74 : x
  2. Step 2: Convert to fraction form
    4,540.64/6,824.55 = 3,765.74/x
  3. Step 3: Cross multiply
    4,540.64x = 6,824.55 × 3,765.74
  4. Step 4: Simplify right side
    4,540.64x = 25,699,480.92
  5. Step 5: Solve for x
    x = 25,699,480.92/4,540.64
  6. Step 6: Final answer
    x = 5,659.88

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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.