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Finding the Fourth Proportional to 35,453.80, 53,132.10 and 28,892.80

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Solution

The fourth proportional to 35,453.80, 53,132.10 and 28,892.80 is: 43,299.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,453.80 : 53,132.10 = 28,892.80 : x
  2. Step 2: Convert to fraction form
    35,453.80/53,132.10 = 28,892.80/x
  3. Step 3: Cross multiply
    35,453.80x = 53,132.10 × 28,892.80
  4. Step 4: Simplify right side
    35,453.80x = 1,535,135,138.88
  5. Step 5: Solve for x
    x = 1,535,135,138.88/35,453.80
  6. Step 6: Final answer
    x = 43,299.59

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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.