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Finding the Fourth Proportional to 36,493.70, 50,361.21 and 20,578.01

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Solution

The fourth proportional to 36,493.70, 50,361.21 and 20,578.01 is: 28,397.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,493.70 : 50,361.21 = 20,578.01 : x
  2. Step 2: Convert to fraction form
    36,493.70/50,361.21 = 20,578.01/x
  3. Step 3: Cross multiply
    36,493.70x = 50,361.21 × 20,578.01
  4. Step 4: Simplify right side
    36,493.70x = 1,036,333,231.19
  5. Step 5: Solve for x
    x = 1,036,333,231.19/36,493.70
  6. Step 6: Final answer
    x = 28,397.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.