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Finding the Fourth Proportional to 17,806.21, 24,592.74 and 12,131.11

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Solution

The fourth proportional to 17,806.21, 24,592.74 and 12,131.11 is: 16,754.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,806.21 : 24,592.74 = 12,131.11 : x
  2. Step 2: Convert to fraction form
    17,806.21/24,592.74 = 12,131.11/x
  3. Step 3: Cross multiply
    17,806.21x = 24,592.74 × 12,131.11
  4. Step 4: Simplify right side
    17,806.21x = 298,337,234.14
  5. Step 5: Solve for x
    x = 298,337,234.14/17,806.21
  6. Step 6: Final answer
    x = 16,754.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.