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Finding the Fourth Proportional to 38,824.80, 58,222.80 and 15,446.40

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Solution

The fourth proportional to 38,824.80, 58,222.80 and 15,446.40 is: 23,163.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,824.80 : 58,222.80 = 15,446.40 : x
  2. Step 2: Convert to fraction form
    38,824.80/58,222.80 = 15,446.40/x
  3. Step 3: Cross multiply
    38,824.80x = 58,222.80 × 15,446.40
  4. Step 4: Simplify right side
    38,824.80x = 899,332,657.92
  5. Step 5: Solve for x
    x = 899,332,657.92/38,824.80
  6. Step 6: Final answer
    x = 23,163.87

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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.