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Finding the Fourth Proportional to 28,874.16, 39,846.04 and 16,299.44

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Solution

The fourth proportional to 28,874.16, 39,846.04 and 16,299.44 is: 22,493.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,874.16 : 39,846.04 = 16,299.44 : x
  2. Step 2: Convert to fraction form
    28,874.16/39,846.04 = 16,299.44/x
  3. Step 3: Cross multiply
    28,874.16x = 39,846.04 × 16,299.44
  4. Step 4: Simplify right side
    28,874.16x = 649,468,138.22
  5. Step 5: Solve for x
    x = 649,468,138.22/28,874.16
  6. Step 6: Final answer
    x = 22,493.06

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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.