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Finding the Fourth Proportional to 17,271.63, 25,879.74 and 15,610.88

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Solution

The fourth proportional to 17,271.63, 25,879.74 and 15,610.88 is: 23,391.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,271.63 : 25,879.74 = 15,610.88 : x
  2. Step 2: Convert to fraction form
    17,271.63/25,879.74 = 15,610.88/x
  3. Step 3: Cross multiply
    17,271.63x = 25,879.74 × 15,610.88
  4. Step 4: Simplify right side
    17,271.63x = 404,005,386.17
  5. Step 5: Solve for x
    x = 404,005,386.17/17,271.63
  6. Step 6: Final answer
    x = 23,391.27

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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.