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Finding the Fourth Proportional to 18,125.44, 25,012.80 and 10,672

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Solution

The fourth proportional to 18,125.44, 25,012.80 and 10,672 is: 14,727.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.44 : 25,012.80 = 10,672 : x
  2. Step 2: Convert to fraction form
    18,125.44/25,012.80 = 10,672/x
  3. Step 3: Cross multiply
    18,125.44x = 25,012.80 × 10,672
  4. Step 4: Simplify right side
    18,125.44x = 266,936,601.60
  5. Step 5: Solve for x
    x = 266,936,601.60/18,125.44
  6. Step 6: Final answer
    x = 14,727.18

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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.