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Finding the Fourth Proportional to 39,912.60, 59,879.30 and 14,953.01

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Solution

The fourth proportional to 39,912.60, 59,879.30 and 14,953.01 is: 22,433.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,912.60 : 59,879.30 = 14,953.01 : x
  2. Step 2: Convert to fraction form
    39,912.60/59,879.30 = 14,953.01/x
  3. Step 3: Cross multiply
    39,912.60x = 59,879.30 × 14,953.01
  4. Step 4: Simplify right side
    39,912.60x = 895,375,481.64
  5. Step 5: Solve for x
    x = 895,375,481.64/39,912.60
  6. Step 6: Final answer
    x = 22,433.41

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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.