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Finding the Fourth Proportional to 18,256.41, 27,384.57 and 4,405.41

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Solution

The fourth proportional to 18,256.41, 27,384.57 and 4,405.41 is: 6,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,256.41 : 27,384.57 = 4,405.41 : x
  2. Step 2: Convert to fraction form
    18,256.41/27,384.57 = 4,405.41/x
  3. Step 3: Cross multiply
    18,256.41x = 27,384.57 × 4,405.41
  4. Step 4: Simplify right side
    18,256.41x = 120,640,258.52
  5. Step 5: Solve for x
    x = 120,640,258.52/18,256.41
  6. Step 6: Final answer
    x = 6,608.10

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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.