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Finding the Fourth Proportional to 50,437.92, 75,611.76 and 20,836.87

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Solution

The fourth proportional to 50,437.92, 75,611.76 and 20,836.87 is: 31,236.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,437.92 : 75,611.76 = 20,836.87 : x
  2. Step 2: Convert to fraction form
    50,437.92/75,611.76 = 20,836.87/x
  3. Step 3: Cross multiply
    50,437.92x = 75,611.76 × 20,836.87
  4. Step 4: Simplify right side
    50,437.92x = 1,575,512,413.59
  5. Step 5: Solve for x
    x = 1,575,512,413.59/50,437.92
  6. Step 6: Final answer
    x = 31,236.67

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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.