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Finding the Fourth Proportional to 16,843.72, 25,271.04 and 8,079.32

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Solution

The fourth proportional to 16,843.72, 25,271.04 and 8,079.32 is: 12,121.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,843.72 : 25,271.04 = 8,079.32 : x
  2. Step 2: Convert to fraction form
    16,843.72/25,271.04 = 8,079.32/x
  3. Step 3: Cross multiply
    16,843.72x = 25,271.04 × 8,079.32
  4. Step 4: Simplify right side
    16,843.72x = 204,172,692.54
  5. Step 5: Solve for x
    x = 204,172,692.54/16,843.72
  6. Step 6: Final answer
    x = 12,121.60

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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.