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Finding the Fourth Proportional to 50,620.56, 75,930.72 and 13,684.56

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Solution

The fourth proportional to 50,620.56, 75,930.72 and 13,684.56 is: 20,526.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,620.56 : 75,930.72 = 13,684.56 : x
  2. Step 2: Convert to fraction form
    50,620.56/75,930.72 = 13,684.56/x
  3. Step 3: Cross multiply
    50,620.56x = 75,930.72 × 13,684.56
  4. Step 4: Simplify right side
    50,620.56x = 1,039,078,493.68
  5. Step 5: Solve for x
    x = 1,039,078,493.68/50,620.56
  6. Step 6: Final answer
    x = 20,526.81

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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.