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Finding the Fourth Proportional to 16,467.20, 24,704.40 and 8,151.20

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Solution

The fourth proportional to 16,467.20, 24,704.40 and 8,151.20 is: 12,228.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,467.20 : 24,704.40 = 8,151.20 : x
  2. Step 2: Convert to fraction form
    16,467.20/24,704.40 = 8,151.20/x
  3. Step 3: Cross multiply
    16,467.20x = 24,704.40 × 8,151.20
  4. Step 4: Simplify right side
    16,467.20x = 201,370,505.28
  5. Step 5: Solve for x
    x = 201,370,505.28/16,467.20
  6. Step 6: Final answer
    x = 12,228.58

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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.