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Finding the Fourth Proportional to 23,912.72, 35,829.67 and 13,889.33

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Solution

The fourth proportional to 23,912.72, 35,829.67 and 13,889.33 is: 20,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,912.72 : 35,829.67 = 13,889.33 : x
  2. Step 2: Convert to fraction form
    23,912.72/35,829.67 = 13,889.33/x
  3. Step 3: Cross multiply
    23,912.72x = 35,829.67 × 13,889.33
  4. Step 4: Simplify right side
    23,912.72x = 497,650,030.91
  5. Step 5: Solve for x
    x = 497,650,030.91/23,912.72
  6. Step 6: Final answer
    x = 20,811.10

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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.