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Finding the Fourth Proportional to 18,242.44, 25,174.56 and 9,858.94

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Solution

The fourth proportional to 18,242.44, 25,174.56 and 9,858.94 is: 13,605.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,242.44 : 25,174.56 = 9,858.94 : x
  2. Step 2: Convert to fraction form
    18,242.44/25,174.56 = 9,858.94/x
  3. Step 3: Cross multiply
    18,242.44x = 25,174.56 × 9,858.94
  4. Step 4: Simplify right side
    18,242.44x = 248,194,450.60
  5. Step 5: Solve for x
    x = 248,194,450.60/18,242.44
  6. Step 6: Final answer
    x = 13,605.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.