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Finding the Fourth Proportional to 5,553.91, 7,664.42 and 3,035.98

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Solution

The fourth proportional to 5,553.91, 7,664.42 and 3,035.98 is: 4,189.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.91 : 7,664.42 = 3,035.98 : x
  2. Step 2: Convert to fraction form
    5,553.91/7,664.42 = 3,035.98/x
  3. Step 3: Cross multiply
    5,553.91x = 7,664.42 × 3,035.98
  4. Step 4: Simplify right side
    5,553.91x = 23,269,025.83
  5. Step 5: Solve for x
    x = 23,269,025.83/5,553.91
  6. Step 6: Final answer
    x = 4,189.67

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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.