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Finding the Fourth Proportional to 17,879.86, 24,674.43 and 9,922.87

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Solution

The fourth proportional to 17,879.86, 24,674.43 and 9,922.87 is: 13,693.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879.86 : 24,674.43 = 9,922.87 : x
  2. Step 2: Convert to fraction form
    17,879.86/24,674.43 = 9,922.87/x
  3. Step 3: Cross multiply
    17,879.86x = 24,674.43 × 9,922.87
  4. Step 4: Simplify right side
    17,879.86x = 244,841,161.21
  5. Step 5: Solve for x
    x = 244,841,161.21/17,879.86
  6. Step 6: Final answer
    x = 13,693.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.