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Finding the Fourth Proportional to 32,540.70, 48,789.18 and 12,809.10

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Solution

The fourth proportional to 32,540.70, 48,789.18 and 12,809.10 is: 19,205.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,540.70 : 48,789.18 = 12,809.10 : x
  2. Step 2: Convert to fraction form
    32,540.70/48,789.18 = 12,809.10/x
  3. Step 3: Cross multiply
    32,540.70x = 48,789.18 × 12,809.10
  4. Step 4: Simplify right side
    32,540.70x = 624,945,485.54
  5. Step 5: Solve for x
    x = 624,945,485.54/32,540.70
  6. Step 6: Final answer
    x = 19,205.04

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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.