Home / 43,914.24-65,882.16-12,749.76

Finding the Fourth Proportional to 43,914.24, 65,882.16 and 12,749.76

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Solution

The fourth proportional to 43,914.24, 65,882.16 and 12,749.76 is: 19,127.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,914.24 : 65,882.16 = 12,749.76 : x
  2. Step 2: Convert to fraction form
    43,914.24/65,882.16 = 12,749.76/x
  3. Step 3: Cross multiply
    43,914.24x = 65,882.16 × 12,749.76
  4. Step 4: Simplify right side
    43,914.24x = 839,981,728.28
  5. Step 5: Solve for x
    x = 839,981,728.28/43,914.24
  6. Step 6: Final answer
    x = 19,127.78

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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.