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Finding the Fourth Proportional to 18,274.12, 27,402.54 and 8,410.48

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Solution

The fourth proportional to 18,274.12, 27,402.54 and 8,410.48 is: 12,611.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.12 : 27,402.54 = 8,410.48 : x
  2. Step 2: Convert to fraction form
    18,274.12/27,402.54 = 8,410.48/x
  3. Step 3: Cross multiply
    18,274.12x = 27,402.54 × 8,410.48
  4. Step 4: Simplify right side
    18,274.12x = 230,468,514.62
  5. Step 5: Solve for x
    x = 230,468,514.62/18,274.12
  6. Step 6: Final answer
    x = 12,611.74

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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.