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Finding the Fourth Proportional to 50,868.94, 76,302.66 and 12,400.60

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Solution

The fourth proportional to 50,868.94, 76,302.66 and 12,400.60 is: 18,600.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,868.94 : 76,302.66 = 12,400.60 : x
  2. Step 2: Convert to fraction form
    50,868.94/76,302.66 = 12,400.60/x
  3. Step 3: Cross multiply
    50,868.94x = 76,302.66 × 12,400.60
  4. Step 4: Simplify right side
    50,868.94x = 946,198,765.60
  5. Step 5: Solve for x
    x = 946,198,765.60/50,868.94
  6. Step 6: Final answer
    x = 18,600.72

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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.