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Finding the Fourth Proportional to 25,825.72, 38,738.04 and 7,105.69

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Solution

The fourth proportional to 25,825.72, 38,738.04 and 7,105.69 is: 10,658.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,825.72 : 38,738.04 = 7,105.69 : x
  2. Step 2: Convert to fraction form
    25,825.72/38,738.04 = 7,105.69/x
  3. Step 3: Cross multiply
    25,825.72x = 38,738.04 × 7,105.69
  4. Step 4: Simplify right side
    25,825.72x = 275,260,503.45
  5. Step 5: Solve for x
    x = 275,260,503.45/25,825.72
  6. Step 6: Final answer
    x = 10,658.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.