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Finding the Fourth Proportional to 18,169.60, 27,257.64 and 5,021.68

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Solution

The fourth proportional to 18,169.60, 27,257.64 and 5,021.68 is: 7,533.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169.60 : 27,257.64 = 5,021.68 : x
  2. Step 2: Convert to fraction form
    18,169.60/27,257.64 = 5,021.68/x
  3. Step 3: Cross multiply
    18,169.60x = 27,257.64 × 5,021.68
  4. Step 4: Simplify right side
    18,169.60x = 136,879,145.64
  5. Step 5: Solve for x
    x = 136,879,145.64/18,169.60
  6. Step 6: Final answer
    x = 7,533.42

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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.