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Finding the Fourth Proportional to 15,032.06, 20,745.54 and 8,744

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Solution

The fourth proportional to 15,032.06, 20,745.54 and 8,744 is: 12,067.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,032.06 : 20,745.54 = 8,744 : x
  2. Step 2: Convert to fraction form
    15,032.06/20,745.54 = 8,744/x
  3. Step 3: Cross multiply
    15,032.06x = 20,745.54 × 8,744
  4. Step 4: Simplify right side
    15,032.06x = 181,399,001.76
  5. Step 5: Solve for x
    x = 181,399,001.76/15,032.06
  6. Step 6: Final answer
    x = 12,067.47

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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.