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Finding the Fourth Proportional to 43,773.48, 65,671.50 and 12,611.16

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Solution

The fourth proportional to 43,773.48, 65,671.50 and 12,611.16 is: 18,919.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,773.48 : 65,671.50 = 12,611.16 : x
  2. Step 2: Convert to fraction form
    43,773.48/65,671.50 = 12,611.16/x
  3. Step 3: Cross multiply
    43,773.48x = 65,671.50 × 12,611.16
  4. Step 4: Simplify right side
    43,773.48x = 828,193,793.94
  5. Step 5: Solve for x
    x = 828,193,793.94/43,773.48
  6. Step 6: Final answer
    x = 18,919.99

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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.