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Finding the Fourth Proportional to 17,879.64, 26,813.39 and 6,190.13

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Solution

The fourth proportional to 17,879.64, 26,813.39 and 6,190.13 is: 9,283.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879.64 : 26,813.39 = 6,190.13 : x
  2. Step 2: Convert to fraction form
    17,879.64/26,813.39 = 6,190.13/x
  3. Step 3: Cross multiply
    17,879.64x = 26,813.39 × 6,190.13
  4. Step 4: Simplify right side
    17,879.64x = 165,978,204.82
  5. Step 5: Solve for x
    x = 165,978,204.82/17,879.64
  6. Step 6: Final answer
    x = 9,283.08

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1.5x scale

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.