Home / 66,584.91-99,876.34-19,837.79

Finding the Fourth Proportional to 66,584.91, 99,876.34 and 19,837.79

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Solution

The fourth proportional to 66,584.91, 99,876.34 and 19,837.79 is: 29,756.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,584.91 : 99,876.34 = 19,837.79 : x
  2. Step 2: Convert to fraction form
    66,584.91/99,876.34 = 19,837.79/x
  3. Step 3: Cross multiply
    66,584.91x = 99,876.34 × 19,837.79
  4. Step 4: Simplify right side
    66,584.91x = 1,981,325,858.89
  5. Step 5: Solve for x
    x = 1,981,325,858.89/66,584.91
  6. Step 6: Final answer
    x = 29,756.38

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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.