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Finding the Fourth Proportional to 18,478.68, 27,717.63 and 5,998.68

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Solution

The fourth proportional to 18,478.68, 27,717.63 and 5,998.68 is: 8,997.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,478.68 : 27,717.63 = 5,998.68 : x
  2. Step 2: Convert to fraction form
    18,478.68/27,717.63 = 5,998.68/x
  3. Step 3: Cross multiply
    18,478.68x = 27,717.63 × 5,998.68
  4. Step 4: Simplify right side
    18,478.68x = 166,269,192.73
  5. Step 5: Solve for x
    x = 166,269,192.73/18,478.68
  6. Step 6: Final answer
    x = 8,997.89

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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.