Home / 51,998.85-77,951.50-18,711.09

Finding the Fourth Proportional to 51,998.85, 77,951.50 and 18,711.09

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Solution

The fourth proportional to 51,998.85, 77,951.50 and 18,711.09 is: 28,049.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,998.85 : 77,951.50 = 18,711.09 : x
  2. Step 2: Convert to fraction form
    51,998.85/77,951.50 = 18,711.09/x
  3. Step 3: Cross multiply
    51,998.85x = 77,951.50 × 18,711.09
  4. Step 4: Simplify right side
    51,998.85x = 1,458,557,485.36
  5. Step 5: Solve for x
    x = 1,458,557,485.36/51,998.85
  6. Step 6: Final answer
    x = 28,049.80

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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.