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Finding the Fourth Proportional to 8,226.63, 12,339.94 and 2,070.63

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Solution

The fourth proportional to 8,226.63, 12,339.94 and 2,070.63 is: 3,105.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,226.63 : 12,339.94 = 2,070.63 : x
  2. Step 2: Convert to fraction form
    8,226.63/12,339.94 = 2,070.63/x
  3. Step 3: Cross multiply
    8,226.63x = 12,339.94 × 2,070.63
  4. Step 4: Simplify right side
    8,226.63x = 25,551,449.96
  5. Step 5: Solve for x
    x = 25,551,449.96/8,226.63
  6. Step 6: Final answer
    x = 3,105.94

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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.