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Finding the Fourth Proportional to 43,781.72, 60,370.72 and 29,609.96

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Solution

The fourth proportional to 43,781.72, 60,370.72 and 29,609.96 is: 40,829.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,781.72 : 60,370.72 = 29,609.96 : x
  2. Step 2: Convert to fraction form
    43,781.72/60,370.72 = 29,609.96/x
  3. Step 3: Cross multiply
    43,781.72x = 60,370.72 × 29,609.96
  4. Step 4: Simplify right side
    43,781.72x = 1,787,574,228.49
  5. Step 5: Solve for x
    x = 1,787,574,228.49/43,781.72
  6. Step 6: Final answer
    x = 40,829.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.