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Finding the Fourth Proportional to 17,093.60, 25,640.40 and 11,188.70

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Solution

The fourth proportional to 17,093.60, 25,640.40 and 11,188.70 is: 16,783.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,093.60 : 25,640.40 = 11,188.70 : x
  2. Step 2: Convert to fraction form
    17,093.60/25,640.40 = 11,188.70/x
  3. Step 3: Cross multiply
    17,093.60x = 25,640.40 × 11,188.70
  4. Step 4: Simplify right side
    17,093.60x = 286,882,743.48
  5. Step 5: Solve for x
    x = 286,882,743.48/17,093.60
  6. Step 6: Final answer
    x = 16,783.05

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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.