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Finding the Fourth Proportional to 72,442.37, 108,579.56 and 27,435.12

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Solution

The fourth proportional to 72,442.37, 108,579.56 and 27,435.12 is: 41,120.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,442.37 : 108,579.56 = 27,435.12 : x
  2. Step 2: Convert to fraction form
    72,442.37/108,579.56 = 27,435.12/x
  3. Step 3: Cross multiply
    72,442.37x = 108,579.56 × 27,435.12
  4. Step 4: Simplify right side
    72,442.37x = 2,978,893,556.04
  5. Step 5: Solve for x
    x = 2,978,893,556.04/72,442.37
  6. Step 6: Final answer
    x = 41,120.88

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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.