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Finding the Fourth Proportional to 18,795.66, 25,936.13 and 11,240.48

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Solution

The fourth proportional to 18,795.66, 25,936.13 and 11,240.48 is: 15,510.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,795.66 : 25,936.13 = 11,240.48 : x
  2. Step 2: Convert to fraction form
    18,795.66/25,936.13 = 11,240.48/x
  3. Step 3: Cross multiply
    18,795.66x = 25,936.13 × 11,240.48
  4. Step 4: Simplify right side
    18,795.66x = 291,534,364.66
  5. Step 5: Solve for x
    x = 291,534,364.66/18,795.66
  6. Step 6: Final answer
    x = 15,510.73

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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.