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Finding the Fourth Proportional to 18,124.75, 25,012.56 and 11,055.07

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Solution

The fourth proportional to 18,124.75, 25,012.56 and 11,055.07 is: 15,256.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,124.75 : 25,012.56 = 11,055.07 : x
  2. Step 2: Convert to fraction form
    18,124.75/25,012.56 = 11,055.07/x
  3. Step 3: Cross multiply
    18,124.75x = 25,012.56 × 11,055.07
  4. Step 4: Simplify right side
    18,124.75x = 276,515,601.68
  5. Step 5: Solve for x
    x = 276,515,601.68/18,124.75
  6. Step 6: Final answer
    x = 15,256.24

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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.