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Finding the Fourth Proportional to 40,553.44, 60,830.10 and 12,849.28

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Solution

The fourth proportional to 40,553.44, 60,830.10 and 12,849.28 is: 19,273.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,553.44 : 60,830.10 = 12,849.28 : x
  2. Step 2: Convert to fraction form
    40,553.44/60,830.10 = 12,849.28/x
  3. Step 3: Cross multiply
    40,553.44x = 60,830.10 × 12,849.28
  4. Step 4: Simplify right side
    40,553.44x = 781,622,987.33
  5. Step 5: Solve for x
    x = 781,622,987.33/40,553.44
  6. Step 6: Final answer
    x = 19,273.90

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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.