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Finding the Fourth Proportional to 18,826.29, 28,181.12 and 11,050.29

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Solution

The fourth proportional to 18,826.29, 28,181.12 and 11,050.29 is: 16,541.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.29 : 28,181.12 = 11,050.29 : x
  2. Step 2: Convert to fraction form
    18,826.29/28,181.12 = 11,050.29/x
  3. Step 3: Cross multiply
    18,826.29x = 28,181.12 × 11,050.29
  4. Step 4: Simplify right side
    18,826.29x = 311,409,493.27
  5. Step 5: Solve for x
    x = 311,409,493.27/18,826.29
  6. Step 6: Final answer
    x = 16,541.20

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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.