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Finding the Fourth Proportional to 16,961.54, 23,404.11 and 9,406.67

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Solution

The fourth proportional to 16,961.54, 23,404.11 and 9,406.67 is: 12,979.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,961.54 : 23,404.11 = 9,406.67 : x
  2. Step 2: Convert to fraction form
    16,961.54/23,404.11 = 9,406.67/x
  3. Step 3: Cross multiply
    16,961.54x = 23,404.11 × 9,406.67
  4. Step 4: Simplify right side
    16,961.54x = 220,154,587.12
  5. Step 5: Solve for x
    x = 220,154,587.12/16,961.54
  6. Step 6: Final answer
    x = 12,979.64

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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.