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Finding the Fourth Proportional to 18,601.88, 27,903.06 and 5,454.52

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Solution

The fourth proportional to 18,601.88, 27,903.06 and 5,454.52 is: 8,181.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,601.88 : 27,903.06 = 5,454.52 : x
  2. Step 2: Convert to fraction form
    18,601.88/27,903.06 = 5,454.52/x
  3. Step 3: Cross multiply
    18,601.88x = 27,903.06 × 5,454.52
  4. Step 4: Simplify right side
    18,601.88x = 152,197,729.07
  5. Step 5: Solve for x
    x = 152,197,729.07/18,601.88
  6. Step 6: Final answer
    x = 8,181.85

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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.