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Finding the Fourth Proportional to 17,879.02, 24,671.06 and 9,919.26

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Solution

The fourth proportional to 17,879.02, 24,671.06 and 9,919.26 is: 13,687.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,879.02 : 24,671.06 = 9,919.26 : x
  2. Step 2: Convert to fraction form
    17,879.02/24,671.06 = 9,919.26/x
  3. Step 3: Cross multiply
    17,879.02x = 24,671.06 × 9,919.26
  4. Step 4: Simplify right side
    17,879.02x = 244,718,658.62
  5. Step 5: Solve for x
    x = 244,718,658.62/17,879.02
  6. Step 6: Final answer
    x = 13,687.48

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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.