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Finding the Fourth Proportional to 18,267.28, 27,400.92 and 4,416.28

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Solution

The fourth proportional to 18,267.28, 27,400.92 and 4,416.28 is: 6,624.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,267.28 : 27,400.92 = 4,416.28 : x
  2. Step 2: Convert to fraction form
    18,267.28/27,400.92 = 4,416.28/x
  3. Step 3: Cross multiply
    18,267.28x = 27,400.92 × 4,416.28
  4. Step 4: Simplify right side
    18,267.28x = 121,010,134.98
  5. Step 5: Solve for x
    x = 121,010,134.98/18,267.28
  6. Step 6: Final answer
    x = 6,624.42

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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.