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Finding the Fourth Proportional to 5,817.56, 8,025.62 and 3,928.53

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Solution

The fourth proportional to 5,817.56, 8,025.62 and 3,928.53 is: 5,419.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,817.56 : 8,025.62 = 3,928.53 : x
  2. Step 2: Convert to fraction form
    5,817.56/8,025.62 = 3,928.53/x
  3. Step 3: Cross multiply
    5,817.56x = 8,025.62 × 3,928.53
  4. Step 4: Simplify right side
    5,817.56x = 31,528,888.94
  5. Step 5: Solve for x
    x = 31,528,888.94/5,817.56
  6. Step 6: Final answer
    x = 5,419.61

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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.