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Finding the Fourth Proportional to 17,012.78, 25,524.36 and 8,698.64

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Solution

The fourth proportional to 17,012.78, 25,524.36 and 8,698.64 is: 13,050.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,012.78 : 25,524.36 = 8,698.64 : x
  2. Step 2: Convert to fraction form
    17,012.78/25,524.36 = 8,698.64/x
  3. Step 3: Cross multiply
    17,012.78x = 25,524.36 × 8,698.64
  4. Step 4: Simplify right side
    17,012.78x = 222,027,047.76
  5. Step 5: Solve for x
    x = 222,027,047.76/17,012.78
  6. Step 6: Final answer
    x = 13,050.60

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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.