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Finding the Fourth Proportional to 23,726.37, 32,781.76 and 18,728.77

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Solution

The fourth proportional to 23,726.37, 32,781.76 and 18,728.77 is: 25,876.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,726.37 : 32,781.76 = 18,728.77 : x
  2. Step 2: Convert to fraction form
    23,726.37/32,781.76 = 18,728.77/x
  3. Step 3: Cross multiply
    23,726.37x = 32,781.76 × 18,728.77
  4. Step 4: Simplify right side
    23,726.37x = 613,962,081.27
  5. Step 5: Solve for x
    x = 613,962,081.27/23,726.37
  6. Step 6: Final answer
    x = 25,876.78

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