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Finding the Fourth Proportional to 54,696.80, 82,021.20 and 25,104.80

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Solution

The fourth proportional to 54,696.80, 82,021.20 and 25,104.80 is: 37,646.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,696.80 : 82,021.20 = 25,104.80 : x
  2. Step 2: Convert to fraction form
    54,696.80/82,021.20 = 25,104.80/x
  3. Step 3: Cross multiply
    54,696.80x = 82,021.20 × 25,104.80
  4. Step 4: Simplify right side
    54,696.80x = 2,059,125,821.76
  5. Step 5: Solve for x
    x = 2,059,125,821.76/54,696.80
  6. Step 6: Final answer
    x = 37,646.18

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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.