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Finding the Fourth Proportional to 19,101.36, 28,660.62 and 10,326

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Solution

The fourth proportional to 19,101.36, 28,660.62 and 10,326 is: 15,493.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,101.36 : 28,660.62 = 10,326 : x
  2. Step 2: Convert to fraction form
    19,101.36/28,660.62 = 10,326/x
  3. Step 3: Cross multiply
    19,101.36x = 28,660.62 × 10,326
  4. Step 4: Simplify right side
    19,101.36x = 295,949,562.12
  5. Step 5: Solve for x
    x = 295,949,562.12/19,101.36
  6. Step 6: Final answer
    x = 15,493.64

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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.