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Finding the Fourth Proportional to 8,101.75, 11,180.42 and 4,375.75

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Solution

The fourth proportional to 8,101.75, 11,180.42 and 4,375.75 is: 6,038.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.75 : 11,180.42 = 4,375.75 : x
  2. Step 2: Convert to fraction form
    8,101.75/11,180.42 = 4,375.75/x
  3. Step 3: Cross multiply
    8,101.75x = 11,180.42 × 4,375.75
  4. Step 4: Simplify right side
    8,101.75x = 48,922,722.82
  5. Step 5: Solve for x
    x = 48,922,722.82/8,101.75
  6. Step 6: Final answer
    x = 6,038.54

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1.5x scale

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.