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Finding the Fourth Proportional to 55,955.65, 83,891.56 and 33,763.78

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Solution

The fourth proportional to 55,955.65, 83,891.56 and 33,763.78 is: 50,620.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,955.65 : 83,891.56 = 33,763.78 : x
  2. Step 2: Convert to fraction form
    55,955.65/83,891.56 = 33,763.78/x
  3. Step 3: Cross multiply
    55,955.65x = 83,891.56 × 33,763.78
  4. Step 4: Simplify right side
    55,955.65x = 2,832,496,175.70
  5. Step 5: Solve for x
    x = 2,832,496,175.70/55,955.65
  6. Step 6: Final answer
    x = 50,620.38

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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.