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Finding the Fourth Proportional to 8,683.44, 13,022.40 and 5,559

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Solution

The fourth proportional to 8,683.44, 13,022.40 and 5,559 is: 8,336.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,683.44 : 13,022.40 = 5,559 : x
  2. Step 2: Convert to fraction form
    8,683.44/13,022.40 = 5,559/x
  3. Step 3: Cross multiply
    8,683.44x = 13,022.40 × 5,559
  4. Step 4: Simplify right side
    8,683.44x = 72,391,521.60
  5. Step 5: Solve for x
    x = 72,391,521.60/8,683.44
  6. Step 6: Final answer
    x = 8,336.73

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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.