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Finding the Fourth Proportional to 19,958.30, 27,541.51 and 11,454.51

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Solution

The fourth proportional to 19,958.30, 27,541.51 and 11,454.51 is: 15,806.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,958.30 : 27,541.51 = 11,454.51 : x
  2. Step 2: Convert to fraction form
    19,958.30/27,541.51 = 11,454.51/x
  3. Step 3: Cross multiply
    19,958.30x = 27,541.51 × 11,454.51
  4. Step 4: Simplify right side
    19,958.30x = 315,474,570.56
  5. Step 5: Solve for x
    x = 315,474,570.56/19,958.30
  6. Step 6: Final answer
    x = 15,806.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.