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Finding the Fourth Proportional to 17,958.44, 26,916.56 and 8,086.16

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Solution

The fourth proportional to 17,958.44, 26,916.56 and 8,086.16 is: 12,119.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,958.44 : 26,916.56 = 8,086.16 : x
  2. Step 2: Convert to fraction form
    17,958.44/26,916.56 = 8,086.16/x
  3. Step 3: Cross multiply
    17,958.44x = 26,916.56 × 8,086.16
  4. Step 4: Simplify right side
    17,958.44x = 217,651,610.81
  5. Step 5: Solve for x
    x = 217,651,610.81/17,958.44
  6. Step 6: Final answer
    x = 12,119.74

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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.