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Finding the Fourth Proportional to 18,474.60, 27,559.20 and 16,287.60

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Solution

The fourth proportional to 18,474.60, 27,559.20 and 16,287.60 is: 24,296.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,474.60 : 27,559.20 = 16,287.60 : x
  2. Step 2: Convert to fraction form
    18,474.60/27,559.20 = 16,287.60/x
  3. Step 3: Cross multiply
    18,474.60x = 27,559.20 × 16,287.60
  4. Step 4: Simplify right side
    18,474.60x = 448,873,225.92
  5. Step 5: Solve for x
    x = 448,873,225.92/18,474.60
  6. Step 6: Final answer
    x = 24,296.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.