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Finding the Fourth Proportional to 17,171.40, 25,758.99 and 5,481.90

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Solution

The fourth proportional to 17,171.40, 25,758.99 and 5,481.90 is: 8,223.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,171.40 : 25,758.99 = 5,481.90 : x
  2. Step 2: Convert to fraction form
    17,171.40/25,758.99 = 5,481.90/x
  3. Step 3: Cross multiply
    17,171.40x = 25,758.99 × 5,481.90
  4. Step 4: Simplify right side
    17,171.40x = 141,208,207.28
  5. Step 5: Solve for x
    x = 141,208,207.28/17,171.40
  6. Step 6: Final answer
    x = 8,223.45

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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.