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Finding the Fourth Proportional to 43,906, 65,859 and 12,741.52

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Solution

The fourth proportional to 43,906, 65,859 and 12,741.52 is: 19,112.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,906 : 65,859 = 12,741.52 : x
  2. Step 2: Convert to fraction form
    43,906/65,859 = 12,741.52/x
  3. Step 3: Cross multiply
    43,906x = 65,859 × 12,741.52
  4. Step 4: Simplify right side
    43,906x = 839,143,765.68
  5. Step 5: Solve for x
    x = 839,143,765.68/43,906
  6. Step 6: Final answer
    x = 19,112.28

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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.