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Finding the Fourth Proportional to 45,773.41, 68,649.04 and 12,493.65

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Solution

The fourth proportional to 45,773.41, 68,649.04 and 12,493.65 is: 18,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,773.41 : 68,649.04 = 12,493.65 : x
  2. Step 2: Convert to fraction form
    45,773.41/68,649.04 = 12,493.65/x
  3. Step 3: Cross multiply
    45,773.41x = 68,649.04 × 12,493.65
  4. Step 4: Simplify right side
    45,773.41x = 857,677,078.60
  5. Step 5: Solve for x
    x = 857,677,078.60/45,773.41
  6. Step 6: Final answer
    x = 18,737.45

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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.