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Finding the Fourth Proportional to 32,148.99, 48,027.96 and 20,811.96

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Solution

The fourth proportional to 32,148.99, 48,027.96 and 20,811.96 is: 31,091.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,148.99 : 48,027.96 = 20,811.96 : x
  2. Step 2: Convert to fraction form
    32,148.99/48,027.96 = 20,811.96/x
  3. Step 3: Cross multiply
    32,148.99x = 48,027.96 × 20,811.96
  4. Step 4: Simplify right side
    32,148.99x = 999,555,982.40
  5. Step 5: Solve for x
    x = 999,555,982.40/32,148.99
  6. Step 6: Final answer
    x = 31,091.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.