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Finding the Fourth Proportional to 50,865.96, 76,200.54 and 28,611.72

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Solution

The fourth proportional to 50,865.96, 76,200.54 and 28,611.72 is: 42,862.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,865.96 : 76,200.54 = 28,611.72 : x
  2. Step 2: Convert to fraction form
    50,865.96/76,200.54 = 28,611.72/x
  3. Step 3: Cross multiply
    50,865.96x = 76,200.54 × 28,611.72
  4. Step 4: Simplify right side
    50,865.96x = 2,180,228,514.33
  5. Step 5: Solve for x
    x = 2,180,228,514.33/50,865.96
  6. Step 6: Final answer
    x = 42,862.23

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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.