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Finding the Fourth Proportional to 61,354.84, 84,635.09 and 36,819.30

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Solution

The fourth proportional to 61,354.84, 84,635.09 and 36,819.30 is: 50,789.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,354.84 : 84,635.09 = 36,819.30 : x
  2. Step 2: Convert to fraction form
    61,354.84/84,635.09 = 36,819.30/x
  3. Step 3: Cross multiply
    61,354.84x = 84,635.09 × 36,819.30
  4. Step 4: Simplify right side
    61,354.84x = 3,116,204,769.24
  5. Step 5: Solve for x
    x = 3,116,204,769.24/61,354.84
  6. Step 6: Final answer
    x = 50,789.88

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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.