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Finding the Fourth Proportional to 36,641.92, 54,969.36 and 11,687.44

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Solution

The fourth proportional to 36,641.92, 54,969.36 and 11,687.44 is: 17,533.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,641.92 : 54,969.36 = 11,687.44 : x
  2. Step 2: Convert to fraction form
    36,641.92/54,969.36 = 11,687.44/x
  3. Step 3: Cross multiply
    36,641.92x = 54,969.36 × 11,687.44
  4. Step 4: Simplify right side
    36,641.92x = 642,451,096.84
  5. Step 5: Solve for x
    x = 642,451,096.84/36,641.92
  6. Step 6: Final answer
    x = 17,533.23

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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.