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Finding the Fourth Proportional to 36,267, 50,048.64 and 21,170.13

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Solution

The fourth proportional to 36,267, 50,048.64 and 21,170.13 is: 29,214.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,267 : 50,048.64 = 21,170.13 : x
  2. Step 2: Convert to fraction form
    36,267/50,048.64 = 21,170.13/x
  3. Step 3: Cross multiply
    36,267x = 50,048.64 × 21,170.13
  4. Step 4: Simplify right side
    36,267x = 1,059,536,215.12
  5. Step 5: Solve for x
    x = 1,059,536,215.12/36,267
  6. Step 6: Final answer
    x = 29,214.88

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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.