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Finding the Fourth Proportional to 27,950.92, 38,571.48 and 15,375.67

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Solution

The fourth proportional to 27,950.92, 38,571.48 and 15,375.67 is: 21,217.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,950.92 : 38,571.48 = 15,375.67 : x
  2. Step 2: Convert to fraction form
    27,950.92/38,571.48 = 15,375.67/x
  3. Step 3: Cross multiply
    27,950.92x = 38,571.48 × 15,375.67
  4. Step 4: Simplify right side
    27,950.92x = 593,062,347.89
  5. Step 5: Solve for x
    x = 593,062,347.89/27,950.92
  6. Step 6: Final answer
    x = 21,217.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.