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Finding the Fourth Proportional to 18,201.94, 25,113.65 and 10,243.70

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Solution

The fourth proportional to 18,201.94, 25,113.65 and 10,243.70 is: 14,133.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.94 : 25,113.65 = 10,243.70 : x
  2. Step 2: Convert to fraction form
    18,201.94/25,113.65 = 10,243.70/x
  3. Step 3: Cross multiply
    18,201.94x = 25,113.65 × 10,243.70
  4. Step 4: Simplify right side
    18,201.94x = 257,256,696.51
  5. Step 5: Solve for x
    x = 257,256,696.51/18,201.94
  6. Step 6: Final answer
    x = 14,133.48

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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.