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Finding the Fourth Proportional to 15,993.08, 23,939.70 and 11,781.08

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Solution

The fourth proportional to 15,993.08, 23,939.70 and 11,781.08 is: 17,634.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,993.08 : 23,939.70 = 11,781.08 : x
  2. Step 2: Convert to fraction form
    15,993.08/23,939.70 = 11,781.08/x
  3. Step 3: Cross multiply
    15,993.08x = 23,939.70 × 11,781.08
  4. Step 4: Simplify right side
    15,993.08x = 282,035,446.77
  5. Step 5: Solve for x
    x = 282,035,446.77/15,993.08
  6. Step 6: Final answer
    x = 17,634.84

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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.