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Finding the Fourth Proportional to 17,245.76, 25,868.76 and 7,883.84

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Solution

The fourth proportional to 17,245.76, 25,868.76 and 7,883.84 is: 11,825.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,245.76 : 25,868.76 = 7,883.84 : x
  2. Step 2: Convert to fraction form
    17,245.76/25,868.76 = 7,883.84/x
  3. Step 3: Cross multiply
    17,245.76x = 25,868.76 × 7,883.84
  4. Step 4: Simplify right side
    17,245.76x = 203,945,164.84
  5. Step 5: Solve for x
    x = 203,945,164.84/17,245.76
  6. Step 6: Final answer
    x = 11,825.81

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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.