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Finding the Fourth Proportional to 8,287.92, 12,431.80 and 2,444.44

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Solution

The fourth proportional to 8,287.92, 12,431.80 and 2,444.44 is: 3,666.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,287.92 : 12,431.80 = 2,444.44 : x
  2. Step 2: Convert to fraction form
    8,287.92/12,431.80 = 2,444.44/x
  3. Step 3: Cross multiply
    8,287.92x = 12,431.80 × 2,444.44
  4. Step 4: Simplify right side
    8,287.92x = 30,388,789.19
  5. Step 5: Solve for x
    x = 30,388,789.19/8,287.92
  6. Step 6: Final answer
    x = 3,666.64

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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.