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Finding the Fourth Proportional to 12,393.66, 18,593.13 and 3,628.86

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Solution

The fourth proportional to 12,393.66, 18,593.13 and 3,628.86 is: 5,444.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393.66 : 18,593.13 = 3,628.86 : x
  2. Step 2: Convert to fraction form
    12,393.66/18,593.13 = 3,628.86/x
  3. Step 3: Cross multiply
    12,393.66x = 18,593.13 × 3,628.86
  4. Step 4: Simplify right side
    12,393.66x = 67,471,865.73
  5. Step 5: Solve for x
    x = 67,471,865.73/12,393.66
  6. Step 6: Final answer
    x = 5,444.06

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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.