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Finding the Fourth Proportional to 36,578, 50,479.80 and 20,662.04

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Solution

The fourth proportional to 36,578, 50,479.80 and 20,662.04 is: 28,514.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,578 : 50,479.80 = 20,662.04 : x
  2. Step 2: Convert to fraction form
    36,578/50,479.80 = 20,662.04/x
  3. Step 3: Cross multiply
    36,578x = 50,479.80 × 20,662.04
  4. Step 4: Simplify right side
    36,578x = 1,043,015,646.79
  5. Step 5: Solve for x
    x = 1,043,015,646.79/36,578
  6. Step 6: Final answer
    x = 28,514.84

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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.