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Finding the Fourth Proportional to 18,203.13, 27,311.27 and 6,358.65

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Solution

The fourth proportional to 18,203.13, 27,311.27 and 6,358.65 is: 9,540.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,203.13 : 27,311.27 = 6,358.65 : x
  2. Step 2: Convert to fraction form
    18,203.13/27,311.27 = 6,358.65/x
  3. Step 3: Cross multiply
    18,203.13x = 27,311.27 × 6,358.65
  4. Step 4: Simplify right side
    18,203.13x = 173,662,775.19
  5. Step 5: Solve for x
    x = 173,662,775.19/18,203.13
  6. Step 6: Final answer
    x = 9,540.27

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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.