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Finding the Fourth Proportional to 30,205.51, 41,666.83 and 28,067.29

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Solution

The fourth proportional to 30,205.51, 41,666.83 and 28,067.29 is: 38,717.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,205.51 : 41,666.83 = 28,067.29 : x
  2. Step 2: Convert to fraction form
    30,205.51/41,666.83 = 28,067.29/x
  3. Step 3: Cross multiply
    30,205.51x = 41,666.83 × 28,067.29
  4. Step 4: Simplify right side
    30,205.51x = 1,169,474,826.66
  5. Step 5: Solve for x
    x = 1,169,474,826.66/30,205.51
  6. Step 6: Final answer
    x = 38,717.27

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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.