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Finding the Fourth Proportional to 18,656, 25,745.40 and 10,273.04

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Solution

The fourth proportional to 18,656, 25,745.40 and 10,273.04 is: 14,176.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,656 : 25,745.40 = 10,273.04 : x
  2. Step 2: Convert to fraction form
    18,656/25,745.40 = 10,273.04/x
  3. Step 3: Cross multiply
    18,656x = 25,745.40 × 10,273.04
  4. Step 4: Simplify right side
    18,656x = 264,483,524.02
  5. Step 5: Solve for x
    x = 264,483,524.02/18,656
  6. Step 6: Final answer
    x = 14,176.86

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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.