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Finding the Fourth Proportional to 35,324.26, 48,751.80 and 20,420.26

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Solution

The fourth proportional to 35,324.26, 48,751.80 and 20,420.26 is: 28,182.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,324.26 : 48,751.80 = 20,420.26 : x
  2. Step 2: Convert to fraction form
    35,324.26/48,751.80 = 20,420.26/x
  3. Step 3: Cross multiply
    35,324.26x = 48,751.80 × 20,420.26
  4. Step 4: Simplify right side
    35,324.26x = 995,524,431.47
  5. Step 5: Solve for x
    x = 995,524,431.47/35,324.26
  6. Step 6: Final answer
    x = 28,182.46

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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.