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Finding the Fourth Proportional to 17,256.28, 25,928.16 and 11,019.28

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Solution

The fourth proportional to 17,256.28, 25,928.16 and 11,019.28 is: 16,556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,256.28 : 25,928.16 = 11,019.28 : x
  2. Step 2: Convert to fraction form
    17,256.28/25,928.16 = 11,019.28/x
  3. Step 3: Cross multiply
    17,256.28x = 25,928.16 × 11,019.28
  4. Step 4: Simplify right side
    17,256.28x = 285,709,654.92
  5. Step 5: Solve for x
    x = 285,709,654.92/17,256.28
  6. Step 6: Final answer
    x = 16,556.85

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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.