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Finding the Fourth Proportional to 18,324.43, 27,484.21 and 5,177.82

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Solution

The fourth proportional to 18,324.43, 27,484.21 and 5,177.82 is: 7,766.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,324.43 : 27,484.21 = 5,177.82 : x
  2. Step 2: Convert to fraction form
    18,324.43/27,484.21 = 5,177.82/x
  3. Step 3: Cross multiply
    18,324.43x = 27,484.21 × 5,177.82
  4. Step 4: Simplify right side
    18,324.43x = 142,308,401.76
  5. Step 5: Solve for x
    x = 142,308,401.76/18,324.43
  6. Step 6: Final answer
    x = 7,766.05

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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.