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Finding the Fourth Proportional to 7,274.78, 10,926.00 and 4,520.69

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Solution

The fourth proportional to 7,274.78, 10,926.00 and 4,520.69 is: 6,789.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,274.78 : 10,926.00 = 4,520.69 : x
  2. Step 2: Convert to fraction form
    7,274.78/10,926.00 = 4,520.69/x
  3. Step 3: Cross multiply
    7,274.78x = 10,926.00 × 4,520.69
  4. Step 4: Simplify right side
    7,274.78x = 49,393,121.64
  5. Step 5: Solve for x
    x = 49,393,121.64/7,274.78
  6. Step 6: Final answer
    x = 6,789.64

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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.