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Finding the Fourth Proportional to 17,211.60, 25,817.40 and 10,650.60

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Solution

The fourth proportional to 17,211.60, 25,817.40 and 10,650.60 is: 15,975.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,211.60 : 25,817.40 = 10,650.60 : x
  2. Step 2: Convert to fraction form
    17,211.60/25,817.40 = 10,650.60/x
  3. Step 3: Cross multiply
    17,211.60x = 25,817.40 × 10,650.60
  4. Step 4: Simplify right side
    17,211.60x = 274,970,800.44
  5. Step 5: Solve for x
    x = 274,970,800.44/17,211.60
  6. Step 6: Final answer
    x = 15,975.90

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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.