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Finding the Fourth Proportional to 18,381.85, 27,528.37 and 10,460.37

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Solution

The fourth proportional to 18,381.85, 27,528.37 and 10,460.37 is: 15,665.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,381.85 : 27,528.37 = 10,460.37 : x
  2. Step 2: Convert to fraction form
    18,381.85/27,528.37 = 10,460.37/x
  3. Step 3: Cross multiply
    18,381.85x = 27,528.37 × 10,460.37
  4. Step 4: Simplify right side
    18,381.85x = 287,956,745.75
  5. Step 5: Solve for x
    x = 287,956,745.75/18,381.85
  6. Step 6: Final answer
    x = 15,665.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.