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Finding the Fourth Proportional to 20,059.79, 30,089.48 and 5,268.44

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Solution

The fourth proportional to 20,059.79, 30,089.48 and 5,268.44 is: 7,902.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059.79 : 30,089.48 = 5,268.44 : x
  2. Step 2: Convert to fraction form
    20,059.79/30,089.48 = 5,268.44/x
  3. Step 3: Cross multiply
    20,059.79x = 30,089.48 × 5,268.44
  4. Step 4: Simplify right side
    20,059.79x = 158,524,668.89
  5. Step 5: Solve for x
    x = 158,524,668.89/20,059.79
  6. Step 6: Final answer
    x = 7,902.61

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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.