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Finding the Fourth Proportional to 57,512, 79,369.80 and 32,363.12

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Solution

The fourth proportional to 57,512, 79,369.80 and 32,363.12 is: 44,662.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,512 : 79,369.80 = 32,363.12 : x
  2. Step 2: Convert to fraction form
    57,512/79,369.80 = 32,363.12/x
  3. Step 3: Cross multiply
    57,512x = 79,369.80 × 32,363.12
  4. Step 4: Simplify right side
    57,512x = 2,568,654,361.78
  5. Step 5: Solve for x
    x = 2,568,654,361.78/57,512
  6. Step 6: Final answer
    x = 44,662.93

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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.