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Finding the Fourth Proportional to 18,758.44, 25,873.86 and 12,041.32

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Solution

The fourth proportional to 18,758.44, 25,873.86 and 12,041.32 is: 16,608.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,758.44 : 25,873.86 = 12,041.32 : x
  2. Step 2: Convert to fraction form
    18,758.44/25,873.86 = 12,041.32/x
  3. Step 3: Cross multiply
    18,758.44x = 25,873.86 × 12,041.32
  4. Step 4: Simplify right side
    18,758.44x = 311,555,427.90
  5. Step 5: Solve for x
    x = 311,555,427.90/18,758.44
  6. Step 6: Final answer
    x = 16,608.81

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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.