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Finding the Fourth Proportional to 7,011.54, 10,512.42 and 2,627.82

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Solution

The fourth proportional to 7,011.54, 10,512.42 and 2,627.82 is: 3,939.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,011.54 : 10,512.42 = 2,627.82 : x
  2. Step 2: Convert to fraction form
    7,011.54/10,512.42 = 2,627.82/x
  3. Step 3: Cross multiply
    7,011.54x = 10,512.42 × 2,627.82
  4. Step 4: Simplify right side
    7,011.54x = 27,624,747.52
  5. Step 5: Solve for x
    x = 27,624,747.52/7,011.54
  6. Step 6: Final answer
    x = 3,939.90

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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.