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Finding the Fourth Proportional to 16,775.70, 25,163.55 and 6,911.70

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Solution

The fourth proportional to 16,775.70, 25,163.55 and 6,911.70 is: 10,367.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,775.70 : 25,163.55 = 6,911.70 : x
  2. Step 2: Convert to fraction form
    16,775.70/25,163.55 = 6,911.70/x
  3. Step 3: Cross multiply
    16,775.70x = 25,163.55 × 6,911.70
  4. Step 4: Simplify right side
    16,775.70x = 173,922,908.54
  5. Step 5: Solve for x
    x = 173,922,908.54/16,775.70
  6. Step 6: Final answer
    x = 10,367.55

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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.