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Finding the Fourth Proportional to 33,712.64, 50,576.64 and 10,342.40

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Solution

The fourth proportional to 33,712.64, 50,576.64 and 10,342.40 is: 15,515.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,712.64 : 50,576.64 = 10,342.40 : x
  2. Step 2: Convert to fraction form
    33,712.64/50,576.64 = 10,342.40/x
  3. Step 3: Cross multiply
    33,712.64x = 50,576.64 × 10,342.40
  4. Step 4: Simplify right side
    33,712.64x = 523,083,841.54
  5. Step 5: Solve for x
    x = 523,083,841.54/33,712.64
  6. Step 6: Final answer
    x = 15,515.96

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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.