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Finding the Fourth Proportional to 5,481.72, 7,566.20 and 3,384.63

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Solution

The fourth proportional to 5,481.72, 7,566.20 and 3,384.63 is: 4,671.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,481.72 : 7,566.20 = 3,384.63 : x
  2. Step 2: Convert to fraction form
    5,481.72/7,566.20 = 3,384.63/x
  3. Step 3: Cross multiply
    5,481.72x = 7,566.20 × 3,384.63
  4. Step 4: Simplify right side
    5,481.72x = 25,608,787.51
  5. Step 5: Solve for x
    x = 25,608,787.51/5,481.72
  6. Step 6: Final answer
    x = 4,671.67

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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.