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Finding the Fourth Proportional to 12,393.64, 18,589.02 and 4,601.56

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Solution

The fourth proportional to 12,393.64, 18,589.02 and 4,601.56 is: 6,901.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393.64 : 18,589.02 = 4,601.56 : x
  2. Step 2: Convert to fraction form
    12,393.64/18,589.02 = 4,601.56/x
  3. Step 3: Cross multiply
    12,393.64x = 18,589.02 × 4,601.56
  4. Step 4: Simplify right side
    12,393.64x = 85,538,490.87
  5. Step 5: Solve for x
    x = 85,538,490.87/12,393.64
  6. Step 6: Final answer
    x = 6,901.81

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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.