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Finding the Fourth Proportional to 8,474.48, 11,694.36 and 4,747.76

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Solution

The fourth proportional to 8,474.48, 11,694.36 and 4,747.76 is: 6,551.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,474.48 : 11,694.36 = 4,747.76 : x
  2. Step 2: Convert to fraction form
    8,474.48/11,694.36 = 4,747.76/x
  3. Step 3: Cross multiply
    8,474.48x = 11,694.36 × 4,747.76
  4. Step 4: Simplify right side
    8,474.48x = 55,522,014.63
  5. Step 5: Solve for x
    x = 55,522,014.63/8,474.48
  6. Step 6: Final answer
    x = 6,551.67

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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.