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Finding the Fourth Proportional to 27,993.70, 41,986.21 and 15,349.68

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Solution

The fourth proportional to 27,993.70, 41,986.21 and 15,349.68 is: 23,022.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,993.70 : 41,986.21 = 15,349.68 : x
  2. Step 2: Convert to fraction form
    27,993.70/41,986.21 = 15,349.68/x
  3. Step 3: Cross multiply
    27,993.70x = 41,986.21 × 15,349.68
  4. Step 4: Simplify right side
    27,993.70x = 644,474,811.16
  5. Step 5: Solve for x
    x = 644,474,811.16/27,993.70
  6. Step 6: Final answer
    x = 23,022.14

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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.