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Finding the Fourth Proportional to 5,445.91, 8,169.93 and 1,747.86

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Solution

The fourth proportional to 5,445.91, 8,169.93 and 1,747.86 is: 2,622.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.91 : 8,169.93 = 1,747.86 : x
  2. Step 2: Convert to fraction form
    5,445.91/8,169.93 = 1,747.86/x
  3. Step 3: Cross multiply
    5,445.91x = 8,169.93 × 1,747.86
  4. Step 4: Simplify right side
    5,445.91x = 14,279,856.66
  5. Step 5: Solve for x
    x = 14,279,856.66/5,445.91
  6. Step 6: Final answer
    x = 2,622.12

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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.