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Finding the Fourth Proportional to 16,879.96, 23,293.15 and 9,326.21

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Solution

The fourth proportional to 16,879.96, 23,293.15 and 9,326.21 is: 12,869.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,879.96 : 23,293.15 = 9,326.21 : x
  2. Step 2: Convert to fraction form
    16,879.96/23,293.15 = 9,326.21/x
  3. Step 3: Cross multiply
    16,879.96x = 23,293.15 × 9,326.21
  4. Step 4: Simplify right side
    16,879.96x = 217,236,785.15
  5. Step 5: Solve for x
    x = 217,236,785.15/16,879.96
  6. Step 6: Final answer
    x = 12,869.51

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Double scale
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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.