Home / 33,780.80-46,615.68-18,672.56

Finding the Fourth Proportional to 33,780.80, 46,615.68 and 18,672.56

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Solution

The fourth proportional to 33,780.80, 46,615.68 and 18,672.56 is: 25,767.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,780.80 : 46,615.68 = 18,672.56 : x
  2. Step 2: Convert to fraction form
    33,780.80/46,615.68 = 18,672.56/x
  3. Step 3: Cross multiply
    33,780.80x = 46,615.68 × 18,672.56
  4. Step 4: Simplify right side
    33,780.80x = 870,433,848.66
  5. Step 5: Solve for x
    x = 870,433,848.66/33,780.80
  6. Step 6: Final answer
    x = 25,767.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.