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Finding the Fourth Proportional to 50,393.28, 75,524.16 and 20,777.28

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Solution

The fourth proportional to 50,393.28, 75,524.16 and 20,777.28 is: 31,138.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,393.28 : 75,524.16 = 20,777.28 : x
  2. Step 2: Convert to fraction form
    50,393.28/75,524.16 = 20,777.28/x
  3. Step 3: Cross multiply
    50,393.28x = 75,524.16 × 20,777.28
  4. Step 4: Simplify right side
    50,393.28x = 1,569,186,619.08
  5. Step 5: Solve for x
    x = 1,569,186,619.08/50,393.28
  6. Step 6: Final answer
    x = 31,138.81

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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.