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Finding the Fourth Proportional to 17,221.75, 25,842.97 and 7,361.03

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Solution

The fourth proportional to 17,221.75, 25,842.97 and 7,361.03 is: 11,045.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,221.75 : 25,842.97 = 7,361.03 : x
  2. Step 2: Convert to fraction form
    17,221.75/25,842.97 = 7,361.03/x
  3. Step 3: Cross multiply
    17,221.75x = 25,842.97 × 7,361.03
  4. Step 4: Simplify right side
    17,221.75x = 190,230,729.84
  5. Step 5: Solve for x
    x = 190,230,729.84/17,221.75
  6. Step 6: Final answer
    x = 11,045.96

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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.