Home / 23,072.76-31,863.78-19,879.56

Finding the Fourth Proportional to 23,072.76, 31,863.78 and 19,879.56

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Solution

The fourth proportional to 23,072.76, 31,863.78 and 19,879.56 is: 27,453.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,072.76 : 31,863.78 = 19,879.56 : x
  2. Step 2: Convert to fraction form
    23,072.76/31,863.78 = 19,879.56/x
  3. Step 3: Cross multiply
    23,072.76x = 31,863.78 × 19,879.56
  4. Step 4: Simplify right side
    23,072.76x = 633,437,926.34
  5. Step 5: Solve for x
    x = 633,437,926.34/23,072.76
  6. Step 6: Final answer
    x = 27,453.93

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Half scale
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Double scale
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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.