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Finding the Fourth Proportional to 5,683.50, 7,844.31 and 3,199.50

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Solution

The fourth proportional to 5,683.50, 7,844.31 and 3,199.50 is: 4,415.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,683.50 : 7,844.31 = 3,199.50 : x
  2. Step 2: Convert to fraction form
    5,683.50/7,844.31 = 3,199.50/x
  3. Step 3: Cross multiply
    5,683.50x = 7,844.31 × 3,199.50
  4. Step 4: Simplify right side
    5,683.50x = 25,097,869.85
  5. Step 5: Solve for x
    x = 25,097,869.85/5,683.50
  6. Step 6: Final answer
    x = 4,415.92

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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.