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Finding the Fourth Proportional to 43,906.74, 65,866.53 and 12,737.94

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Solution

The fourth proportional to 43,906.74, 65,866.53 and 12,737.94 is: 19,108.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,906.74 : 65,866.53 = 12,737.94 : x
  2. Step 2: Convert to fraction form
    43,906.74/65,866.53 = 12,737.94/x
  3. Step 3: Cross multiply
    43,906.74x = 65,866.53 × 12,737.94
  4. Step 4: Simplify right side
    43,906.74x = 839,003,907.15
  5. Step 5: Solve for x
    x = 839,003,907.15/43,906.74
  6. Step 6: Final answer
    x = 19,108.77

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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.