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Finding the Fourth Proportional to 18,305.64, 27,458.46 and 5,825.61

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Solution

The fourth proportional to 18,305.64, 27,458.46 and 5,825.61 is: 8,738.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.64 : 27,458.46 = 5,825.61 : x
  2. Step 2: Convert to fraction form
    18,305.64/27,458.46 = 5,825.61/x
  3. Step 3: Cross multiply
    18,305.64x = 27,458.46 × 5,825.61
  4. Step 4: Simplify right side
    18,305.64x = 159,962,279.16
  5. Step 5: Solve for x
    x = 159,962,279.16/18,305.64
  6. Step 6: Final answer
    x = 8,738.42

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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.