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Finding the Fourth Proportional to 39,858.40, 59,794.80 and 16,487.20

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Solution

The fourth proportional to 39,858.40, 59,794.80 and 16,487.20 is: 24,733.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,858.40 : 59,794.80 = 16,487.20 : x
  2. Step 2: Convert to fraction form
    39,858.40/59,794.80 = 16,487.20/x
  3. Step 3: Cross multiply
    39,858.40x = 59,794.80 × 16,487.20
  4. Step 4: Simplify right side
    39,858.40x = 985,848,826.56
  5. Step 5: Solve for x
    x = 985,848,826.56/39,858.40
  6. Step 6: Final answer
    x = 24,733.78

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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.