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Finding the Fourth Proportional to 69,772.36, 104,658.54 and 20,524.36

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Solution

The fourth proportional to 69,772.36, 104,658.54 and 20,524.36 is: 30,786.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,772.36 : 104,658.54 = 20,524.36 : x
  2. Step 2: Convert to fraction form
    69,772.36/104,658.54 = 20,524.36/x
  3. Step 3: Cross multiply
    69,772.36x = 104,658.54 × 20,524.36
  4. Step 4: Simplify right side
    69,772.36x = 2,148,049,552.03
  5. Step 5: Solve for x
    x = 2,148,049,552.03/69,772.36
  6. Step 6: Final answer
    x = 30,786.54

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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.