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Finding the Fourth Proportional to 20,596.77, 30,897.56 and 7,455.33

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Solution

The fourth proportional to 20,596.77, 30,897.56 and 7,455.33 is: 11,183.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,596.77 : 30,897.56 = 7,455.33 : x
  2. Step 2: Convert to fraction form
    20,596.77/30,897.56 = 7,455.33/x
  3. Step 3: Cross multiply
    20,596.77x = 30,897.56 × 7,455.33
  4. Step 4: Simplify right side
    20,596.77x = 230,351,468.72
  5. Step 5: Solve for x
    x = 230,351,468.72/20,596.77
  6. Step 6: Final answer
    x = 11,183.86

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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.