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Finding the Fourth Proportional to 13,541.88, 18,687.94 and 7,573.88

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Solution

The fourth proportional to 13,541.88, 18,687.94 and 7,573.88 is: 10,452.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.88 : 18,687.94 = 7,573.88 : x
  2. Step 2: Convert to fraction form
    13,541.88/18,687.94 = 7,573.88/x
  3. Step 3: Cross multiply
    13,541.88x = 18,687.94 × 7,573.88
  4. Step 4: Simplify right side
    13,541.88x = 141,540,215.01
  5. Step 5: Solve for x
    x = 141,540,215.01/13,541.88
  6. Step 6: Final answer
    x = 10,452.04

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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.