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Finding the Fourth Proportional to 17,150.54, 25,720.54 and 6,619.73

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Solution

The fourth proportional to 17,150.54, 25,720.54 and 6,619.73 is: 9,927.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,150.54 : 25,720.54 = 6,619.73 : x
  2. Step 2: Convert to fraction form
    17,150.54/25,720.54 = 6,619.73/x
  3. Step 3: Cross multiply
    17,150.54x = 25,720.54 × 6,619.73
  4. Step 4: Simplify right side
    17,150.54x = 170,262,885.10
  5. Step 5: Solve for x
    x = 170,262,885.10/17,150.54
  6. Step 6: Final answer
    x = 9,927.56

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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.