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Finding the Fourth Proportional to 30,556.44, 45,837.39 and 8,369.93

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Solution

The fourth proportional to 30,556.44, 45,837.39 and 8,369.93 is: 12,555.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,556.44 : 45,837.39 = 8,369.93 : x
  2. Step 2: Convert to fraction form
    30,556.44/45,837.39 = 8,369.93/x
  3. Step 3: Cross multiply
    30,556.44x = 45,837.39 × 8,369.93
  4. Step 4: Simplify right side
    30,556.44x = 383,655,891.66
  5. Step 5: Solve for x
    x = 383,655,891.66/30,556.44
  6. Step 6: Final answer
    x = 12,555.65

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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.