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Finding the Fourth Proportional to 16,800.68, 25,205.94 and 6,940.52

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Solution

The fourth proportional to 16,800.68, 25,205.94 and 6,940.52 is: 10,412.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,800.68 : 25,205.94 = 6,940.52 : x
  2. Step 2: Convert to fraction form
    16,800.68/25,205.94 = 6,940.52/x
  3. Step 3: Cross multiply
    16,800.68x = 25,205.94 × 6,940.52
  4. Step 4: Simplify right side
    16,800.68x = 174,942,330.69
  5. Step 5: Solve for x
    x = 174,942,330.69/16,800.68
  6. Step 6: Final answer
    x = 10,412.81

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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.