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Finding the Fourth Proportional to 17,879.12, 24,676.12 and 9,923.90

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Solution

The fourth proportional to 17,879.12, 24,676.12 and 9,923.90 is: 13,696.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879.12 : 24,676.12 = 9,923.90 : x
  2. Step 2: Convert to fraction form
    17,879.12/24,676.12 = 9,923.90/x
  3. Step 3: Cross multiply
    17,879.12x = 24,676.12 × 9,923.90
  4. Step 4: Simplify right side
    17,879.12x = 244,883,347.27
  5. Step 5: Solve for x
    x = 244,883,347.27/17,879.12
  6. Step 6: Final answer
    x = 13,696.61

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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.