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Finding the Fourth Proportional to 17,245, 25,879.65 and 6,859.18

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Solution

The fourth proportional to 17,245, 25,879.65 and 6,859.18 is: 10,293.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,245 : 25,879.65 = 6,859.18 : x
  2. Step 2: Convert to fraction form
    17,245/25,879.65 = 6,859.18/x
  3. Step 3: Cross multiply
    17,245x = 25,879.65 × 6,859.18
  4. Step 4: Simplify right side
    17,245x = 177,513,177.69
  5. Step 5: Solve for x
    x = 177,513,177.69/17,245
  6. Step 6: Final answer
    x = 10,293.60

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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.