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Finding the Fourth Proportional to 8,348.32, 12,473.44 and 8,057.60

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Solution

The fourth proportional to 8,348.32, 12,473.44 and 8,057.60 is: 12,039.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348.32 : 12,473.44 = 8,057.60 : x
  2. Step 2: Convert to fraction form
    8,348.32/12,473.44 = 8,057.60/x
  3. Step 3: Cross multiply
    8,348.32x = 12,473.44 × 8,057.60
  4. Step 4: Simplify right side
    8,348.32x = 100,505,990.14
  5. Step 5: Solve for x
    x = 100,505,990.14/8,348.32
  6. Step 6: Final answer
    x = 12,039.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.