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Finding the Fourth Proportional to 19,067.40, 28,601.10 and 5,027.40

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Solution

The fourth proportional to 19,067.40, 28,601.10 and 5,027.40 is: 7,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,067.40 : 28,601.10 = 5,027.40 : x
  2. Step 2: Convert to fraction form
    19,067.40/28,601.10 = 5,027.40/x
  3. Step 3: Cross multiply
    19,067.40x = 28,601.10 × 5,027.40
  4. Step 4: Simplify right side
    19,067.40x = 143,789,170.14
  5. Step 5: Solve for x
    x = 143,789,170.14/19,067.40
  6. Step 6: Final answer
    x = 7,541.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.