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Finding the Fourth Proportional to 5,664.74, 7,817.57 and 3,146.83

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Solution

The fourth proportional to 5,664.74, 7,817.57 and 3,146.83 is: 4,342.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,664.74 : 7,817.57 = 3,146.83 : x
  2. Step 2: Convert to fraction form
    5,664.74/7,817.57 = 3,146.83/x
  3. Step 3: Cross multiply
    5,664.74x = 7,817.57 × 3,146.83
  4. Step 4: Simplify right side
    5,664.74x = 24,600,540.33
  5. Step 5: Solve for x
    x = 24,600,540.33/5,664.74
  6. Step 6: Final answer
    x = 4,342.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.