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Finding the Fourth Proportional to 32,491.99, 48,737.99 and 20,879.02

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Solution

The fourth proportional to 32,491.99, 48,737.99 and 20,879.02 is: 31,318.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,491.99 : 48,737.99 = 20,879.02 : x
  2. Step 2: Convert to fraction form
    32,491.99/48,737.99 = 20,879.02/x
  3. Step 3: Cross multiply
    32,491.99x = 48,737.99 × 20,879.02
  4. Step 4: Simplify right side
    32,491.99x = 1,017,601,467.97
  5. Step 5: Solve for x
    x = 1,017,601,467.97/32,491.99
  6. Step 6: Final answer
    x = 31,318.53

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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.