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Finding the Fourth Proportional to 7,267, 10,900.60 and 2,072.88

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Solution

The fourth proportional to 7,267, 10,900.60 and 2,072.88 is: 3,109.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,267 : 10,900.60 = 2,072.88 : x
  2. Step 2: Convert to fraction form
    7,267/10,900.60 = 2,072.88/x
  3. Step 3: Cross multiply
    7,267x = 10,900.60 × 2,072.88
  4. Step 4: Simplify right side
    7,267x = 22,595,635.73
  5. Step 5: Solve for x
    x = 22,595,635.73/7,267
  6. Step 6: Final answer
    x = 3,109.35

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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.