Home / 25,507.12-38,259.24-7,974.88

Finding the Fourth Proportional to 25,507.12, 38,259.24 and 7,974.88

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Solution

The fourth proportional to 25,507.12, 38,259.24 and 7,974.88 is: 11,961.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,507.12 : 38,259.24 = 7,974.88 : x
  2. Step 2: Convert to fraction form
    25,507.12/38,259.24 = 7,974.88/x
  3. Step 3: Cross multiply
    25,507.12x = 38,259.24 × 7,974.88
  4. Step 4: Simplify right side
    25,507.12x = 305,112,847.89
  5. Step 5: Solve for x
    x = 305,112,847.89/25,507.12
  6. Step 6: Final answer
    x = 11,961.87

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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.