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Finding the Fourth Proportional to 72,027.40, 107,961.90 and 25,256.20

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Solution

The fourth proportional to 72,027.40, 107,961.90 and 25,256.20 is: 37,856.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,027.40 : 107,961.90 = 25,256.20 : x
  2. Step 2: Convert to fraction form
    72,027.40/107,961.90 = 25,256.20/x
  3. Step 3: Cross multiply
    72,027.40x = 107,961.90 × 25,256.20
  4. Step 4: Simplify right side
    72,027.40x = 2,726,707,338.78
  5. Step 5: Solve for x
    x = 2,726,707,338.78/72,027.40
  6. Step 6: Final answer
    x = 37,856.53

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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.