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Finding the Fourth Proportional to 18,203.11, 27,311.23 and 6,358.63

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Solution

The fourth proportional to 18,203.11, 27,311.23 and 6,358.63 is: 9,540.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,203.11 : 27,311.23 = 6,358.63 : x
  2. Step 2: Convert to fraction form
    18,203.11/27,311.23 = 6,358.63/x
  3. Step 3: Cross multiply
    18,203.11x = 27,311.23 × 6,358.63
  4. Step 4: Simplify right side
    18,203.11x = 173,662,006.41
  5. Step 5: Solve for x
    x = 173,662,006.41/18,203.11
  6. Step 6: Final answer
    x = 9,540.24

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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.