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Finding the Fourth Proportional to 17,223.80, 25,842.90 and 5,540.60

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Solution

The fourth proportional to 17,223.80, 25,842.90 and 5,540.60 is: 8,313.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,223.80 : 25,842.90 = 5,540.60 : x
  2. Step 2: Convert to fraction form
    17,223.80/25,842.90 = 5,540.60/x
  3. Step 3: Cross multiply
    17,223.80x = 25,842.90 × 5,540.60
  4. Step 4: Simplify right side
    17,223.80x = 143,185,171.74
  5. Step 5: Solve for x
    x = 143,185,171.74/17,223.80
  6. Step 6: Final answer
    x = 8,313.22

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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.