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Finding the Fourth Proportional to 57,819.08, 79,694.86 and 38,692.04

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Solution

The fourth proportional to 57,819.08, 79,694.86 and 38,692.04 is: 53,331.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,819.08 : 79,694.86 = 38,692.04 : x
  2. Step 2: Convert to fraction form
    57,819.08/79,694.86 = 38,692.04/x
  3. Step 3: Cross multiply
    57,819.08x = 79,694.86 × 38,692.04
  4. Step 4: Simplify right side
    57,819.08x = 3,083,556,710.91
  5. Step 5: Solve for x
    x = 3,083,556,710.91/57,819.08
  6. Step 6: Final answer
    x = 53,331.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.