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Finding the Fourth Proportional to 12,393.37, 18,581.98 and 4,494.41

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Solution

The fourth proportional to 12,393.37, 18,581.98 and 4,494.41 is: 6,738.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393.37 : 18,581.98 = 4,494.41 : x
  2. Step 2: Convert to fraction form
    12,393.37/18,581.98 = 4,494.41/x
  3. Step 3: Cross multiply
    12,393.37x = 18,581.98 × 4,494.41
  4. Step 4: Simplify right side
    12,393.37x = 83,515,104.99
  5. Step 5: Solve for x
    x = 83,515,104.99/12,393.37
  6. Step 6: Final answer
    x = 6,738.69

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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.