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Finding the Fourth Proportional to 40,672.73, 60,929.64 and 28,020.26

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Solution

The fourth proportional to 40,672.73, 60,929.64 and 28,020.26 is: 41,975.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,672.73 : 60,929.64 = 28,020.26 : x
  2. Step 2: Convert to fraction form
    40,672.73/60,929.64 = 28,020.26/x
  3. Step 3: Cross multiply
    40,672.73x = 60,929.64 × 28,020.26
  4. Step 4: Simplify right side
    40,672.73x = 1,707,264,049.86
  5. Step 5: Solve for x
    x = 1,707,264,049.86/40,672.73
  6. Step 6: Final answer
    x = 41,975.65

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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.