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Finding the Fourth Proportional to 11,914.58, 16,440.94 and 6,609.29

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Solution

The fourth proportional to 11,914.58, 16,440.94 and 6,609.29 is: 9,120.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,914.58 : 16,440.94 = 6,609.29 : x
  2. Step 2: Convert to fraction form
    11,914.58/16,440.94 = 6,609.29/x
  3. Step 3: Cross multiply
    11,914.58x = 16,440.94 × 6,609.29
  4. Step 4: Simplify right side
    11,914.58x = 108,662,940.33
  5. Step 5: Solve for x
    x = 108,662,940.33/11,914.58
  6. Step 6: Final answer
    x = 9,120.17

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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.