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Finding the Fourth Proportional to 50,474.67, 75,715.64 and 20,474.49

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Solution

The fourth proportional to 50,474.67, 75,715.64 and 20,474.49 is: 30,713.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,474.67 : 75,715.64 = 20,474.49 : x
  2. Step 2: Convert to fraction form
    50,474.67/75,715.64 = 20,474.49/x
  3. Step 3: Cross multiply
    50,474.67x = 75,715.64 × 20,474.49
  4. Step 4: Simplify right side
    50,474.67x = 1,550,239,114.02
  5. Step 5: Solve for x
    x = 1,550,239,114.02/50,474.67
  6. Step 6: Final answer
    x = 30,713.21

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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.