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Finding the Fourth Proportional to 17,170.25, 25,771.99 and 8,291.81

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Solution

The fourth proportional to 17,170.25, 25,771.99 and 8,291.81 is: 12,445.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,170.25 : 25,771.99 = 8,291.81 : x
  2. Step 2: Convert to fraction form
    17,170.25/25,771.99 = 8,291.81/x
  3. Step 3: Cross multiply
    17,170.25x = 25,771.99 × 8,291.81
  4. Step 4: Simplify right side
    17,170.25x = 213,696,294.81
  5. Step 5: Solve for x
    x = 213,696,294.81/17,170.25
  6. Step 6: Final answer
    x = 12,445.73

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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.