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Finding the Fourth Proportional to 18,151.26, 27,228.44 and 5,003.64

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Solution

The fourth proportional to 18,151.26, 27,228.44 and 5,003.64 is: 7,505.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.26 : 27,228.44 = 5,003.64 : x
  2. Step 2: Convert to fraction form
    18,151.26/27,228.44 = 5,003.64/x
  3. Step 3: Cross multiply
    18,151.26x = 27,228.44 × 5,003.64
  4. Step 4: Simplify right side
    18,151.26x = 136,241,311.52
  5. Step 5: Solve for x
    x = 136,241,311.52/18,151.26
  6. Step 6: Final answer
    x = 7,505.89

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1.5x scale

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.