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Finding the Fourth Proportional to 20,049.68, 30,081.31 and 7,573.31

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Solution

The fourth proportional to 20,049.68, 30,081.31 and 7,573.31 is: 11,362.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,049.68 : 30,081.31 = 7,573.31 : x
  2. Step 2: Convert to fraction form
    20,049.68/30,081.31 = 7,573.31/x
  3. Step 3: Cross multiply
    20,049.68x = 30,081.31 × 7,573.31
  4. Step 4: Simplify right side
    20,049.68x = 227,814,916.50
  5. Step 5: Solve for x
    x = 227,814,916.50/20,049.68
  6. Step 6: Final answer
    x = 11,362.52

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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.