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Finding the Fourth Proportional to 18,425.66, 25,427.42 and 10,467.90

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Solution

The fourth proportional to 18,425.66, 25,427.42 and 10,467.90 is: 14,445.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.66 : 25,427.42 = 10,467.90 : x
  2. Step 2: Convert to fraction form
    18,425.66/25,427.42 = 10,467.90/x
  3. Step 3: Cross multiply
    18,425.66x = 25,427.42 × 10,467.90
  4. Step 4: Simplify right side
    18,425.66x = 266,171,676.73
  5. Step 5: Solve for x
    x = 266,171,676.73/18,425.66
  6. Step 6: Final answer
    x = 14,445.71

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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.