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Finding the Fourth Proportional to 55,244.70, 82,871.64 and 19,692.27

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Solution

The fourth proportional to 55,244.70, 82,871.64 and 19,692.27 is: 29,540.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,244.70 : 82,871.64 = 19,692.27 : x
  2. Step 2: Convert to fraction form
    55,244.70/82,871.64 = 19,692.27/x
  3. Step 3: Cross multiply
    55,244.70x = 82,871.64 × 19,692.27
  4. Step 4: Simplify right side
    55,244.70x = 1,631,930,710.22
  5. Step 5: Solve for x
    x = 1,631,930,710.22/55,244.70
  6. Step 6: Final answer
    x = 29,540.04

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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.