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Finding the Fourth Proportional to 18,676.41, 25,773.81 and 10,178.49

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Solution

The fourth proportional to 18,676.41, 25,773.81 and 10,178.49 is: 14,046.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676.41 : 25,773.81 = 10,178.49 : x
  2. Step 2: Convert to fraction form
    18,676.41/25,773.81 = 10,178.49/x
  3. Step 3: Cross multiply
    18,676.41x = 25,773.81 × 10,178.49
  4. Step 4: Simplify right side
    18,676.41x = 262,338,583.08
  5. Step 5: Solve for x
    x = 262,338,583.08/18,676.41
  6. Step 6: Final answer
    x = 14,046.52

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1.5x scale

Why These Related Problems?

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