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Finding the Fourth Proportional to 40,351.41, 60,536.84 and 12,649.41

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Solution

The fourth proportional to 40,351.41, 60,536.84 and 12,649.41 is: 18,977.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,351.41 : 60,536.84 = 12,649.41 : x
  2. Step 2: Convert to fraction form
    40,351.41/60,536.84 = 12,649.41/x
  3. Step 3: Cross multiply
    40,351.41x = 60,536.84 × 12,649.41
  4. Step 4: Simplify right side
    40,351.41x = 765,755,246.02
  5. Step 5: Solve for x
    x = 765,755,246.02/40,351.41
  6. Step 6: Final answer
    x = 18,977.16

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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.