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Finding the Fourth Proportional to 3,768.92, 5,651.55 and 1,302.87

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Solution

The fourth proportional to 3,768.92, 5,651.55 and 1,302.87 is: 1,953.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.92 : 5,651.55 = 1,302.87 : x
  2. Step 2: Convert to fraction form
    3,768.92/5,651.55 = 1,302.87/x
  3. Step 3: Cross multiply
    3,768.92x = 5,651.55 × 1,302.87
  4. Step 4: Simplify right side
    3,768.92x = 7,363,234.95
  5. Step 5: Solve for x
    x = 7,363,234.95/3,768.92
  6. Step 6: Final answer
    x = 1,953.67

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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.