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Finding the Fourth Proportional to 5,579.15, 8,369.53 and 1,683.86

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Solution

The fourth proportional to 5,579.15, 8,369.53 and 1,683.86 is: 2,526.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,579.15 : 8,369.53 = 1,683.86 : x
  2. Step 2: Convert to fraction form
    5,579.15/8,369.53 = 1,683.86/x
  3. Step 3: Cross multiply
    5,579.15x = 8,369.53 × 1,683.86
  4. Step 4: Simplify right side
    5,579.15x = 14,093,070.73
  5. Step 5: Solve for x
    x = 14,093,070.73/5,579.15
  6. Step 6: Final answer
    x = 2,526.03

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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.