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Finding the Fourth Proportional to 50,820.60, 76,230.90 and 34,231.80

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Solution

The fourth proportional to 50,820.60, 76,230.90 and 34,231.80 is: 51,347.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,820.60 : 76,230.90 = 34,231.80 : x
  2. Step 2: Convert to fraction form
    50,820.60/76,230.90 = 34,231.80/x
  3. Step 3: Cross multiply
    50,820.60x = 76,230.90 × 34,231.80
  4. Step 4: Simplify right side
    50,820.60x = 2,609,520,922.62
  5. Step 5: Solve for x
    x = 2,609,520,922.62/50,820.60
  6. Step 6: Final answer
    x = 51,347.70

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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.