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Finding the Fourth Proportional to 52,415.98, 78,553.90 and 19,104.73

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Solution

The fourth proportional to 52,415.98, 78,553.90 and 19,104.73 is: 28,631.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,415.98 : 78,553.90 = 19,104.73 : x
  2. Step 2: Convert to fraction form
    52,415.98/78,553.90 = 19,104.73/x
  3. Step 3: Cross multiply
    52,415.98x = 78,553.90 × 19,104.73
  4. Step 4: Simplify right side
    52,415.98x = 1,500,751,049.95
  5. Step 5: Solve for x
    x = 1,500,751,049.95/52,415.98
  6. Step 6: Final answer
    x = 28,631.56

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1.5x scale

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.