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Finding the Fourth Proportional to 7,334, 10,992.20 and 3,379.82

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Solution

The fourth proportional to 7,334, 10,992.20 and 3,379.82 is: 5,065.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,334 : 10,992.20 = 3,379.82 : x
  2. Step 2: Convert to fraction form
    7,334/10,992.20 = 3,379.82/x
  3. Step 3: Cross multiply
    7,334x = 10,992.20 × 3,379.82
  4. Step 4: Simplify right side
    7,334x = 37,151,657.40
  5. Step 5: Solve for x
    x = 37,151,657.40/7,334
  6. Step 6: Final answer
    x = 5,065.67

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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.