Home / 17,631.75-26,456.22-7,769.79

Finding the Fourth Proportional to 17,631.75, 26,456.22 and 7,769.79

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Solution

The fourth proportional to 17,631.75, 26,456.22 and 7,769.79 is: 11,658.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,631.75 : 26,456.22 = 7,769.79 : x
  2. Step 2: Convert to fraction form
    17,631.75/26,456.22 = 7,769.79/x
  3. Step 3: Cross multiply
    17,631.75x = 26,456.22 × 7,769.79
  4. Step 4: Simplify right side
    17,631.75x = 205,559,273.59
  5. Step 5: Solve for x
    x = 205,559,273.59/17,631.75
  6. Step 6: Final answer
    x = 11,658.47

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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.