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Finding the Fourth Proportional to 41,994.40, 62,905.20 and 28,861.60

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Solution

The fourth proportional to 41,994.40, 62,905.20 and 28,861.60 is: 43,233.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,994.40 : 62,905.20 = 28,861.60 : x
  2. Step 2: Convert to fraction form
    41,994.40/62,905.20 = 28,861.60/x
  3. Step 3: Cross multiply
    41,994.40x = 62,905.20 × 28,861.60
  4. Step 4: Simplify right side
    41,994.40x = 1,815,544,720.32
  5. Step 5: Solve for x
    x = 1,815,544,720.32/41,994.40
  6. Step 6: Final answer
    x = 43,233.02

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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.