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Finding the Fourth Proportional to 26,353, 36,375.78 and 18,922.60

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Solution

The fourth proportional to 26,353, 36,375.78 and 18,922.60 is: 26,119.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,353 : 36,375.78 = 18,922.60 : x
  2. Step 2: Convert to fraction form
    26,353/36,375.78 = 18,922.60/x
  3. Step 3: Cross multiply
    26,353x = 36,375.78 × 18,922.60
  4. Step 4: Simplify right side
    26,353x = 688,324,334.63
  5. Step 5: Solve for x
    x = 688,324,334.63/26,353
  6. Step 6: Final answer
    x = 26,119.39

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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.