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Finding the Fourth Proportional to 5,690.58, 8,543.16 and 3,849.86

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Solution

The fourth proportional to 5,690.58, 8,543.16 and 3,849.86 is: 5,779.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,690.58 : 8,543.16 = 3,849.86 : x
  2. Step 2: Convert to fraction form
    5,690.58/8,543.16 = 3,849.86/x
  3. Step 3: Cross multiply
    5,690.58x = 8,543.16 × 3,849.86
  4. Step 4: Simplify right side
    5,690.58x = 32,889,927.24
  5. Step 5: Solve for x
    x = 32,889,927.24/5,690.58
  6. Step 6: Final answer
    x = 5,779.71

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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.