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Finding the Fourth Proportional to 18,274.06, 27,412.05 and 5,793.12

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Solution

The fourth proportional to 18,274.06, 27,412.05 and 5,793.12 is: 8,689.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.06 : 27,412.05 = 5,793.12 : x
  2. Step 2: Convert to fraction form
    18,274.06/27,412.05 = 5,793.12/x
  3. Step 3: Cross multiply
    18,274.06x = 27,412.05 × 5,793.12
  4. Step 4: Simplify right side
    18,274.06x = 158,801,316.82
  5. Step 5: Solve for x
    x = 158,801,316.82/18,274.06
  6. Step 6: Final answer
    x = 8,689.99

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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.