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Finding the Fourth Proportional to 17,196.78, 25,762.23 and 11,640.54

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Solution

The fourth proportional to 17,196.78, 25,762.23 and 11,640.54 is: 17,438.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,196.78 : 25,762.23 = 11,640.54 : x
  2. Step 2: Convert to fraction form
    17,196.78/25,762.23 = 11,640.54/x
  3. Step 3: Cross multiply
    17,196.78x = 25,762.23 × 11,640.54
  4. Step 4: Simplify right side
    17,196.78x = 299,886,268.80
  5. Step 5: Solve for x
    x = 299,886,268.80/17,196.78
  6. Step 6: Final answer
    x = 17,438.51

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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.