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Finding the Fourth Proportional to 55,290.94, 82,936.41 and 18,354.94

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Solution

The fourth proportional to 55,290.94, 82,936.41 and 18,354.94 is: 27,532.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,290.94 : 82,936.41 = 18,354.94 : x
  2. Step 2: Convert to fraction form
    55,290.94/82,936.41 = 18,354.94/x
  3. Step 3: Cross multiply
    55,290.94x = 82,936.41 × 18,354.94
  4. Step 4: Simplify right side
    55,290.94x = 1,522,292,553.19
  5. Step 5: Solve for x
    x = 1,522,292,553.19/55,290.94
  6. Step 6: Final answer
    x = 27,532.41

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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.