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Finding the Fourth Proportional to 18,424.96, 27,641.39 and 5,945.69

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Solution

The fourth proportional to 18,424.96, 27,641.39 and 5,945.69 is: 8,919.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,424.96 : 27,641.39 = 5,945.69 : x
  2. Step 2: Convert to fraction form
    18,424.96/27,641.39 = 5,945.69/x
  3. Step 3: Cross multiply
    18,424.96x = 27,641.39 × 5,945.69
  4. Step 4: Simplify right side
    18,424.96x = 164,347,175.48
  5. Step 5: Solve for x
    x = 164,347,175.48/18,424.96
  6. Step 6: Final answer
    x = 8,919.81

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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.