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Finding the Fourth Proportional to 13,632.26, 18,812.92 and 8,043.26

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Solution

The fourth proportional to 13,632.26, 18,812.92 and 8,043.26 is: 11,099.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.26 : 18,812.92 = 8,043.26 : x
  2. Step 2: Convert to fraction form
    13,632.26/18,812.92 = 8,043.26/x
  3. Step 3: Cross multiply
    13,632.26x = 18,812.92 × 8,043.26
  4. Step 4: Simplify right side
    13,632.26x = 151,317,206.92
  5. Step 5: Solve for x
    x = 151,317,206.92/13,632.26
  6. Step 6: Final answer
    x = 11,099.94

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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.