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Finding the Fourth Proportional to 32,440.40, 48,660.60 and 25,879.40

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Solution

The fourth proportional to 32,440.40, 48,660.60 and 25,879.40 is: 38,819.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,440.40 : 48,660.60 = 25,879.40 : x
  2. Step 2: Convert to fraction form
    32,440.40/48,660.60 = 25,879.40/x
  3. Step 3: Cross multiply
    32,440.40x = 48,660.60 × 25,879.40
  4. Step 4: Simplify right side
    32,440.40x = 1,259,307,131.64
  5. Step 5: Solve for x
    x = 1,259,307,131.64/32,440.40
  6. Step 6: Final answer
    x = 38,819.10

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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.