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Finding the Fourth Proportional to 62,940.82, 94,378.72 and 18,561.93

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Solution

The fourth proportional to 62,940.82, 94,378.72 and 18,561.93 is: 27,833.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,940.82 : 94,378.72 = 18,561.93 : x
  2. Step 2: Convert to fraction form
    62,940.82/94,378.72 = 18,561.93/x
  3. Step 3: Cross multiply
    62,940.82x = 94,378.72 × 18,561.93
  4. Step 4: Simplify right side
    62,940.82x = 1,751,851,194.13
  5. Step 5: Solve for x
    x = 1,751,851,194.13/62,940.82
  6. Step 6: Final answer
    x = 27,833.31

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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.