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Finding the Fourth Proportional to 7,050.33, 9,729.39 and 3,906.54

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Solution

The fourth proportional to 7,050.33, 9,729.39 and 3,906.54 is: 5,390.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,050.33 : 9,729.39 = 3,906.54 : x
  2. Step 2: Convert to fraction form
    7,050.33/9,729.39 = 3,906.54/x
  3. Step 3: Cross multiply
    7,050.33x = 9,729.39 × 3,906.54
  4. Step 4: Simplify right side
    7,050.33x = 38,008,251.21
  5. Step 5: Solve for x
    x = 38,008,251.21/7,050.33
  6. Step 6: Final answer
    x = 5,390.99

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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.