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Finding the Fourth Proportional to 36,388.55, 50,215.84 and 20,255.60

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Solution

The fourth proportional to 36,388.55, 50,215.84 and 20,255.60 is: 27,952.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,388.55 : 50,215.84 = 20,255.60 : x
  2. Step 2: Convert to fraction form
    36,388.55/50,215.84 = 20,255.60/x
  3. Step 3: Cross multiply
    36,388.55x = 50,215.84 × 20,255.60
  4. Step 4: Simplify right side
    36,388.55x = 1,017,151,968.70
  5. Step 5: Solve for x
    x = 1,017,151,968.70/36,388.55
  6. Step 6: Final answer
    x = 27,952.53

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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.