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Finding the Fourth Proportional to 18,182.92, 25,094.32 and 11,114.06

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Solution

The fourth proportional to 18,182.92, 25,094.32 and 11,114.06 is: 15,338.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,182.92 : 25,094.32 = 11,114.06 : x
  2. Step 2: Convert to fraction form
    18,182.92/25,094.32 = 11,114.06/x
  3. Step 3: Cross multiply
    18,182.92x = 25,094.32 × 11,114.06
  4. Step 4: Simplify right side
    18,182.92x = 278,899,778.14
  5. Step 5: Solve for x
    x = 278,899,778.14/18,182.92
  6. Step 6: Final answer
    x = 15,338.56

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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.