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Finding the Fourth Proportional to 16,961.92, 23,406.61 and 9,407.65

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Solution

The fourth proportional to 16,961.92, 23,406.61 and 9,407.65 is: 12,982.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,961.92 : 23,406.61 = 9,407.65 : x
  2. Step 2: Convert to fraction form
    16,961.92/23,406.61 = 9,407.65/x
  3. Step 3: Cross multiply
    16,961.92x = 23,406.61 × 9,407.65
  4. Step 4: Simplify right side
    16,961.92x = 220,201,194.57
  5. Step 5: Solve for x
    x = 220,201,194.57/16,961.92
  6. Step 6: Final answer
    x = 12,982.09

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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.