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Finding the Fourth Proportional to 16,958.43, 25,402.95 and 7,939.62

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Solution

The fourth proportional to 16,958.43, 25,402.95 and 7,939.62 is: 11,893.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,958.43 : 25,402.95 = 7,939.62 : x
  2. Step 2: Convert to fraction form
    16,958.43/25,402.95 = 7,939.62/x
  3. Step 3: Cross multiply
    16,958.43x = 25,402.95 × 7,939.62
  4. Step 4: Simplify right side
    16,958.43x = 201,689,769.88
  5. Step 5: Solve for x
    x = 201,689,769.88/16,958.43
  6. Step 6: Final answer
    x = 11,893.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.