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Finding the Fourth Proportional to 50,396.62, 75,539.34 and 20,798.22

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Solution

The fourth proportional to 50,396.62, 75,539.34 and 20,798.22 is: 31,174.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,396.62 : 75,539.34 = 20,798.22 : x
  2. Step 2: Convert to fraction form
    50,396.62/75,539.34 = 20,798.22/x
  3. Step 3: Cross multiply
    50,396.62x = 75,539.34 × 20,798.22
  4. Step 4: Simplify right side
    50,396.62x = 1,571,083,811.97
  5. Step 5: Solve for x
    x = 1,571,083,811.97/50,396.62
  6. Step 6: Final answer
    x = 31,174.39

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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.