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Finding the Fourth Proportional to 11,018.55, 16,506.99 and 8,541.24

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Solution

The fourth proportional to 11,018.55, 16,506.99 and 8,541.24 is: 12,795.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,018.55 : 16,506.99 = 8,541.24 : x
  2. Step 2: Convert to fraction form
    11,018.55/16,506.99 = 8,541.24/x
  3. Step 3: Cross multiply
    11,018.55x = 16,506.99 × 8,541.24
  4. Step 4: Simplify right side
    11,018.55x = 140,990,163.27
  5. Step 5: Solve for x
    x = 140,990,163.27/11,018.55
  6. Step 6: Final answer
    x = 12,795.71

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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.