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Finding the Fourth Proportional to 18,676.63, 25,773.09 and 10,178.58

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Solution

The fourth proportional to 18,676.63, 25,773.09 and 10,178.58 is: 14,046.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676.63 : 25,773.09 = 10,178.58 : x
  2. Step 2: Convert to fraction form
    18,676.63/25,773.09 = 10,178.58/x
  3. Step 3: Cross multiply
    18,676.63x = 25,773.09 × 10,178.58
  4. Step 4: Simplify right side
    18,676.63x = 262,333,458.41
  5. Step 5: Solve for x
    x = 262,333,458.41/18,676.63
  6. Step 6: Final answer
    x = 14,046.08

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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.