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Finding the Fourth Proportional to 17,879.48, 26,812.82 and 6,789.18

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Solution

The fourth proportional to 17,879.48, 26,812.82 and 6,789.18 is: 10,181.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879.48 : 26,812.82 = 6,789.18 : x
  2. Step 2: Convert to fraction form
    17,879.48/26,812.82 = 6,789.18/x
  3. Step 3: Cross multiply
    17,879.48x = 26,812.82 × 6,789.18
  4. Step 4: Simplify right side
    17,879.48x = 182,037,061.29
  5. Step 5: Solve for x
    x = 182,037,061.29/17,879.48
  6. Step 6: Final answer
    x = 10,181.34

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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.