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Finding the Fourth Proportional to 38,633.12, 57,978.96 and 25,481.12

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Solution

The fourth proportional to 38,633.12, 57,978.96 and 25,481.12 is: 38,240.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,633.12 : 57,978.96 = 25,481.12 : x
  2. Step 2: Convert to fraction form
    38,633.12/57,978.96 = 25,481.12/x
  3. Step 3: Cross multiply
    38,633.12x = 57,978.96 × 25,481.12
  4. Step 4: Simplify right side
    38,633.12x = 1,477,368,837.24
  5. Step 5: Solve for x
    x = 1,477,368,837.24/38,633.12
  6. Step 6: Final answer
    x = 38,240.99

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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.