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Finding the Fourth Proportional to 8,658.10, 12,996.87 and 3,467.62

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Solution

The fourth proportional to 8,658.10, 12,996.87 and 3,467.62 is: 5,205.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,658.10 : 12,996.87 = 3,467.62 : x
  2. Step 2: Convert to fraction form
    8,658.10/12,996.87 = 3,467.62/x
  3. Step 3: Cross multiply
    8,658.10x = 12,996.87 × 3,467.62
  4. Step 4: Simplify right side
    8,658.10x = 45,068,206.35
  5. Step 5: Solve for x
    x = 45,068,206.35/8,658.10
  6. Step 6: Final answer
    x = 5,205.32

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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.