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Finding the Fourth Proportional to 11,324.32, 16,993.08 and 4,749.92

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Solution

The fourth proportional to 11,324.32, 16,993.08 and 4,749.92 is: 7,127.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,324.32 : 16,993.08 = 4,749.92 : x
  2. Step 2: Convert to fraction form
    11,324.32/16,993.08 = 4,749.92/x
  3. Step 3: Cross multiply
    11,324.32x = 16,993.08 × 4,749.92
  4. Step 4: Simplify right side
    11,324.32x = 80,715,770.55
  5. Step 5: Solve for x
    x = 80,715,770.55/11,324.32
  6. Step 6: Final answer
    x = 7,127.65

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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.