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Finding the Fourth Proportional to 18,350.40, 27,583.20 and 18,004.80

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Solution

The fourth proportional to 18,350.40, 27,583.20 and 18,004.80 is: 27,063.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,350.40 : 27,583.20 = 18,004.80 : x
  2. Step 2: Convert to fraction form
    18,350.40/27,583.20 = 18,004.80/x
  3. Step 3: Cross multiply
    18,350.40x = 27,583.20 × 18,004.80
  4. Step 4: Simplify right side
    18,350.40x = 496,629,999.36
  5. Step 5: Solve for x
    x = 496,629,999.36/18,350.40
  6. Step 6: Final answer
    x = 27,063.72

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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.