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Finding the Fourth Proportional to 17,714.40, 26,571.60 and 11,169.60

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Solution

The fourth proportional to 17,714.40, 26,571.60 and 11,169.60 is: 16,754.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,714.40 : 26,571.60 = 11,169.60 : x
  2. Step 2: Convert to fraction form
    17,714.40/26,571.60 = 11,169.60/x
  3. Step 3: Cross multiply
    17,714.40x = 26,571.60 × 11,169.60
  4. Step 4: Simplify right side
    17,714.40x = 296,794,143.36
  5. Step 5: Solve for x
    x = 296,794,143.36/17,714.40
  6. Step 6: Final answer
    x = 16,754.40

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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.