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Finding the Fourth Proportional to 50,419.44, 75,650.76 and 20,858.76

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Solution

The fourth proportional to 50,419.44, 75,650.76 and 20,858.76 is: 31,297.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,419.44 : 75,650.76 = 20,858.76 : x
  2. Step 2: Convert to fraction form
    50,419.44/75,650.76 = 20,858.76/x
  3. Step 3: Cross multiply
    50,419.44x = 75,650.76 × 20,858.76
  4. Step 4: Simplify right side
    50,419.44x = 1,577,981,046.66
  5. Step 5: Solve for x
    x = 1,577,981,046.66/50,419.44
  6. Step 6: Final answer
    x = 31,297.08

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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.