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Finding the Fourth Proportional to 61,378.56, 84,692.49 and 34,519.46

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Solution

The fourth proportional to 61,378.56, 84,692.49 and 34,519.46 is: 47,631.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,378.56 : 84,692.49 = 34,519.46 : x
  2. Step 2: Convert to fraction form
    61,378.56/84,692.49 = 34,519.46/x
  3. Step 3: Cross multiply
    61,378.56x = 84,692.49 × 34,519.46
  4. Step 4: Simplify right side
    61,378.56x = 2,923,539,020.86
  5. Step 5: Solve for x
    x = 2,923,539,020.86/61,378.56
  6. Step 6: Final answer
    x = 47,631.27

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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.