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Finding the Fourth Proportional to 18,152.48, 25,039.57 and 11,426.44

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Solution

The fourth proportional to 18,152.48, 25,039.57 and 11,426.44 is: 15,761.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,152.48 : 25,039.57 = 11,426.44 : x
  2. Step 2: Convert to fraction form
    18,152.48/25,039.57 = 11,426.44/x
  3. Step 3: Cross multiply
    18,152.48x = 25,039.57 × 11,426.44
  4. Step 4: Simplify right side
    18,152.48x = 286,113,144.23
  5. Step 5: Solve for x
    x = 286,113,144.23/18,152.48
  6. Step 6: Final answer
    x = 15,761.66

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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.