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Finding the Fourth Proportional to 18,048.42, 27,072.63 and 4,902.73

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Solution

The fourth proportional to 18,048.42, 27,072.63 and 4,902.73 is: 7,354.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,048.42 : 27,072.63 = 4,902.73 : x
  2. Step 2: Convert to fraction form
    18,048.42/27,072.63 = 4,902.73/x
  3. Step 3: Cross multiply
    18,048.42x = 27,072.63 × 4,902.73
  4. Step 4: Simplify right side
    18,048.42x = 132,729,727.60
  5. Step 5: Solve for x
    x = 132,729,727.60/18,048.42
  6. Step 6: Final answer
    x = 7,354.09

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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.