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Finding the Fourth Proportional to 29,991.51, 41,388.03 and 16,562.61

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Solution

The fourth proportional to 29,991.51, 41,388.03 and 16,562.61 is: 22,856.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,991.51 : 41,388.03 = 16,562.61 : x
  2. Step 2: Convert to fraction form
    29,991.51/41,388.03 = 16,562.61/x
  3. Step 3: Cross multiply
    29,991.51x = 41,388.03 × 16,562.61
  4. Step 4: Simplify right side
    29,991.51x = 685,493,799.56
  5. Step 5: Solve for x
    x = 685,493,799.56/29,991.51
  6. Step 6: Final answer
    x = 22,856.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.