Home / 57,786.80-86,672.76-18,344.36

Finding the Fourth Proportional to 57,786.80, 86,672.76 and 18,344.36

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Solution

The fourth proportional to 57,786.80, 86,672.76 and 18,344.36 is: 27,514.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,786.80 : 86,672.76 = 18,344.36 : x
  2. Step 2: Convert to fraction form
    57,786.80/86,672.76 = 18,344.36/x
  3. Step 3: Cross multiply
    57,786.80x = 86,672.76 × 18,344.36
  4. Step 4: Simplify right side
    57,786.80x = 1,589,956,311.63
  5. Step 5: Solve for x
    x = 1,589,956,311.63/57,786.80
  6. Step 6: Final answer
    x = 27,514.18

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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.