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Finding the Fourth Proportional to 17,879.14, 26,812.64 and 6,189.63

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Solution

The fourth proportional to 17,879.14, 26,812.64 and 6,189.63 is: 9,282.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879.14 : 26,812.64 = 6,189.63 : x
  2. Step 2: Convert to fraction form
    17,879.14/26,812.64 = 6,189.63/x
  3. Step 3: Cross multiply
    17,879.14x = 26,812.64 × 6,189.63
  4. Step 4: Simplify right side
    17,879.14x = 165,960,155.91
  5. Step 5: Solve for x
    x = 165,960,155.91/17,879.14
  6. Step 6: Final answer
    x = 9,282.33

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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.