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Finding the Fourth Proportional to 17,021.76, 25,537.44 and 8,256.96

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Solution

The fourth proportional to 17,021.76, 25,537.44 and 8,256.96 is: 12,387.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,021.76 : 25,537.44 = 8,256.96 : x
  2. Step 2: Convert to fraction form
    17,021.76/25,537.44 = 8,256.96/x
  3. Step 3: Cross multiply
    17,021.76x = 25,537.44 × 8,256.96
  4. Step 4: Simplify right side
    17,021.76x = 210,861,620.58
  5. Step 5: Solve for x
    x = 210,861,620.58/17,021.76
  6. Step 6: Final answer
    x = 12,387.77

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1.5x scale

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.