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Finding the Fourth Proportional to 36,709.17, 50,662.19 and 20,579.20

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Solution

The fourth proportional to 36,709.17, 50,662.19 and 20,579.20 is: 28,401.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,709.17 : 50,662.19 = 20,579.20 : x
  2. Step 2: Convert to fraction form
    36,709.17/50,662.19 = 20,579.20/x
  3. Step 3: Cross multiply
    36,709.17x = 50,662.19 × 20,579.20
  4. Step 4: Simplify right side
    36,709.17x = 1,042,587,265.24
  5. Step 5: Solve for x
    x = 1,042,587,265.24/36,709.17
  6. Step 6: Final answer
    x = 28,401.28

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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.