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Finding the Fourth Proportional to 23,910.30, 35,865.59 and 12,231.72

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Solution

The fourth proportional to 23,910.30, 35,865.59 and 12,231.72 is: 18,347.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,910.30 : 35,865.59 = 12,231.72 : x
  2. Step 2: Convert to fraction form
    23,910.30/35,865.59 = 12,231.72/x
  3. Step 3: Cross multiply
    23,910.30x = 35,865.59 × 12,231.72
  4. Step 4: Simplify right side
    23,910.30x = 438,697,793.36
  5. Step 5: Solve for x
    x = 438,697,793.36/23,910.30
  6. Step 6: Final answer
    x = 18,347.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.