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Finding the Fourth Proportional to 36,395.68, 50,232.16 and 21,080

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Solution

The fourth proportional to 36,395.68, 50,232.16 and 21,080 is: 29,093.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,395.68 : 50,232.16 = 21,080 : x
  2. Step 2: Convert to fraction form
    36,395.68/50,232.16 = 21,080/x
  3. Step 3: Cross multiply
    36,395.68x = 50,232.16 × 21,080
  4. Step 4: Simplify right side
    36,395.68x = 1,058,893,932.80
  5. Step 5: Solve for x
    x = 1,058,893,932.80/36,395.68
  6. Step 6: Final answer
    x = 29,093.95

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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.