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Finding the Fourth Proportional to 24,339.78, 33,588.90 and 13,161.78

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Solution

The fourth proportional to 24,339.78, 33,588.90 and 13,161.78 is: 18,163.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,339.78 : 33,588.90 = 13,161.78 : x
  2. Step 2: Convert to fraction form
    24,339.78/33,588.90 = 13,161.78/x
  3. Step 3: Cross multiply
    24,339.78x = 33,588.90 × 13,161.78
  4. Step 4: Simplify right side
    24,339.78x = 442,089,712.24
  5. Step 5: Solve for x
    x = 442,089,712.24/24,339.78
  6. Step 6: Final answer
    x = 18,163.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.