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Finding the Fourth Proportional to 6,748.11, 9,311.28 and 3,763.98

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Solution

The fourth proportional to 6,748.11, 9,311.28 and 3,763.98 is: 5,193.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,748.11 : 9,311.28 = 3,763.98 : x
  2. Step 2: Convert to fraction form
    6,748.11/9,311.28 = 3,763.98/x
  3. Step 3: Cross multiply
    6,748.11x = 9,311.28 × 3,763.98
  4. Step 4: Simplify right side
    6,748.11x = 35,047,471.69
  5. Step 5: Solve for x
    x = 35,047,471.69/6,748.11
  6. Step 6: Final answer
    x = 5,193.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.