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Finding the Fourth Proportional to 30,814.66, 42,524.79 and 18,076.98

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Solution

The fourth proportional to 30,814.66, 42,524.79 and 18,076.98 is: 24,946.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,814.66 : 42,524.79 = 18,076.98 : x
  2. Step 2: Convert to fraction form
    30,814.66/42,524.79 = 18,076.98/x
  3. Step 3: Cross multiply
    30,814.66x = 42,524.79 × 18,076.98
  4. Step 4: Simplify right side
    30,814.66x = 768,719,778.33
  5. Step 5: Solve for x
    x = 768,719,778.33/30,814.66
  6. Step 6: Final answer
    x = 24,946.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.