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Finding the Fourth Proportional to 8,074.66, 11,142.93 and 4,489.59

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Solution

The fourth proportional to 8,074.66, 11,142.93 and 4,489.59 is: 6,195.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.66 : 11,142.93 = 4,489.59 : x
  2. Step 2: Convert to fraction form
    8,074.66/11,142.93 = 4,489.59/x
  3. Step 3: Cross multiply
    8,074.66x = 11,142.93 × 4,489.59
  4. Step 4: Simplify right side
    8,074.66x = 50,027,179.77
  5. Step 5: Solve for x
    x = 50,027,179.77/8,074.66
  6. Step 6: Final answer
    x = 6,195.58

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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.