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Finding the Fourth Proportional to 5,958.70, 8,928.92 and 3,185.76

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Solution

The fourth proportional to 5,958.70, 8,928.92 and 3,185.76 is: 4,773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,958.70 : 8,928.92 = 3,185.76 : x
  2. Step 2: Convert to fraction form
    5,958.70/8,928.92 = 3,185.76/x
  3. Step 3: Cross multiply
    5,958.70x = 8,928.92 × 3,185.76
  4. Step 4: Simplify right side
    5,958.70x = 28,445,396.18
  5. Step 5: Solve for x
    x = 28,445,396.18/5,958.70
  6. Step 6: Final answer
    x = 4,773.76

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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.