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Finding the Fourth Proportional to 17,103.54, 25,619.31 and 8,758.20

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Solution

The fourth proportional to 17,103.54, 25,619.31 and 8,758.20 is: 13,118.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,103.54 : 25,619.31 = 8,758.20 : x
  2. Step 2: Convert to fraction form
    17,103.54/25,619.31 = 8,758.20/x
  3. Step 3: Cross multiply
    17,103.54x = 25,619.31 × 8,758.20
  4. Step 4: Simplify right side
    17,103.54x = 224,379,040.84
  5. Step 5: Solve for x
    x = 224,379,040.84/17,103.54
  6. Step 6: Final answer
    x = 13,118.87

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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.