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Finding the Fourth Proportional to 83,796.98, 125,696.82 and 20,617.26

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Solution

The fourth proportional to 83,796.98, 125,696.82 and 20,617.26 is: 30,926.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,796.98 : 125,696.82 = 20,617.26 : x
  2. Step 2: Convert to fraction form
    83,796.98/125,696.82 = 20,617.26/x
  3. Step 3: Cross multiply
    83,796.98x = 125,696.82 × 20,617.26
  4. Step 4: Simplify right side
    83,796.98x = 2,591,524,019.11
  5. Step 5: Solve for x
    x = 2,591,524,019.11/83,796.98
  6. Step 6: Final answer
    x = 30,926.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.