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Finding the Fourth Proportional to 19,146.27, 28,647.27 and 17,203.89

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Solution

The fourth proportional to 19,146.27, 28,647.27 and 17,203.89 is: 25,741.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,146.27 : 28,647.27 = 17,203.89 : x
  2. Step 2: Convert to fraction form
    19,146.27/28,647.27 = 17,203.89/x
  3. Step 3: Cross multiply
    19,146.27x = 28,647.27 × 17,203.89
  4. Step 4: Simplify right side
    19,146.27x = 492,844,481.88
  5. Step 5: Solve for x
    x = 492,844,481.88/19,146.27
  6. Step 6: Final answer
    x = 25,741.02

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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.