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Finding the Fourth Proportional to 36,765.92, 50,748.42 and 20,860.88

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Solution

The fourth proportional to 36,765.92, 50,748.42 and 20,860.88 is: 28,794.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,765.92 : 50,748.42 = 20,860.88 : x
  2. Step 2: Convert to fraction form
    36,765.92/50,748.42 = 20,860.88/x
  3. Step 3: Cross multiply
    36,765.92x = 50,748.42 × 20,860.88
  4. Step 4: Simplify right side
    36,765.92x = 1,058,656,699.81
  5. Step 5: Solve for x
    x = 1,058,656,699.81/36,765.92
  6. Step 6: Final answer
    x = 28,794.51

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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.