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Finding the Fourth Proportional to 18,455.43, 27,683.25 and 4,604.43

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Solution

The fourth proportional to 18,455.43, 27,683.25 and 4,604.43 is: 6,906.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455.43 : 27,683.25 = 4,604.43 : x
  2. Step 2: Convert to fraction form
    18,455.43/27,683.25 = 4,604.43/x
  3. Step 3: Cross multiply
    18,455.43x = 27,683.25 × 4,604.43
  4. Step 4: Simplify right side
    18,455.43x = 127,465,586.80
  5. Step 5: Solve for x
    x = 127,465,586.80/18,455.43
  6. Step 6: Final answer
    x = 6,906.67

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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.