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Finding the Fourth Proportional to 18,295.20, 27,410.40 and 16,221.60

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Solution

The fourth proportional to 18,295.20, 27,410.40 and 16,221.60 is: 24,303.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.20 : 27,410.40 = 16,221.60 : x
  2. Step 2: Convert to fraction form
    18,295.20/27,410.40 = 16,221.60/x
  3. Step 3: Cross multiply
    18,295.20x = 27,410.40 × 16,221.60
  4. Step 4: Simplify right side
    18,295.20x = 444,640,544.64
  5. Step 5: Solve for x
    x = 444,640,544.64/18,295.20
  6. Step 6: Final answer
    x = 24,303.67

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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.