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Finding the Fourth Proportional to 24,392.71, 33,640.86 and 15,891.63

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Solution

The fourth proportional to 24,392.71, 33,640.86 and 15,891.63 is: 21,916.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,392.71 : 33,640.86 = 15,891.63 : x
  2. Step 2: Convert to fraction form
    24,392.71/33,640.86 = 15,891.63/x
  3. Step 3: Cross multiply
    24,392.71x = 33,640.86 × 15,891.63
  4. Step 4: Simplify right side
    24,392.71x = 534,608,100.00
  5. Step 5: Solve for x
    x = 534,608,100.00/24,392.71
  6. Step 6: Final answer
    x = 21,916.72

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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.