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Finding the Fourth Proportional to 16,671.14, 24,989.43 and 7,899.38

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Solution

The fourth proportional to 16,671.14, 24,989.43 and 7,899.38 is: 11,840.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,671.14 : 24,989.43 = 7,899.38 : x
  2. Step 2: Convert to fraction form
    16,671.14/24,989.43 = 7,899.38/x
  3. Step 3: Cross multiply
    16,671.14x = 24,989.43 × 7,899.38
  4. Step 4: Simplify right side
    16,671.14x = 197,401,003.55
  5. Step 5: Solve for x
    x = 197,401,003.55/16,671.14
  6. Step 6: Final answer
    x = 11,840.88

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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.