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Finding the Fourth Proportional to 8,226.48, 12,339.24 and 2,070

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Solution

The fourth proportional to 8,226.48, 12,339.24 and 2,070 is: 3,104.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,226.48 : 12,339.24 = 2,070 : x
  2. Step 2: Convert to fraction form
    8,226.48/12,339.24 = 2,070/x
  3. Step 3: Cross multiply
    8,226.48x = 12,339.24 × 2,070
  4. Step 4: Simplify right side
    8,226.48x = 25,542,226.80
  5. Step 5: Solve for x
    x = 25,542,226.80/8,226.48
  6. Step 6: Final answer
    x = 3,104.88

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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.