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Finding the Fourth Proportional to 12,793.77, 19,182.39 and 5,396.24

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Solution

The fourth proportional to 12,793.77, 19,182.39 and 5,396.24 is: 8,090.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,793.77 : 19,182.39 = 5,396.24 : x
  2. Step 2: Convert to fraction form
    12,793.77/19,182.39 = 5,396.24/x
  3. Step 3: Cross multiply
    12,793.77x = 19,182.39 × 5,396.24
  4. Step 4: Simplify right side
    12,793.77x = 103,512,684.30
  5. Step 5: Solve for x
    x = 103,512,684.30/12,793.77
  6. Step 6: Final answer
    x = 8,090.87

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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.