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Finding the Fourth Proportional to 36,697.45, 50,642.20 and 19,930.45

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Solution

The fourth proportional to 36,697.45, 50,642.20 and 19,930.45 is: 27,503.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,697.45 : 50,642.20 = 19,930.45 : x
  2. Step 2: Convert to fraction form
    36,697.45/50,642.20 = 19,930.45/x
  3. Step 3: Cross multiply
    36,697.45x = 50,642.20 × 19,930.45
  4. Step 4: Simplify right side
    36,697.45x = 1,009,321,735.34
  5. Step 5: Solve for x
    x = 1,009,321,735.34/36,697.45
  6. Step 6: Final answer
    x = 27,503.87

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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.