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Finding the Fourth Proportional to 18,482.56, 25,500.16 and 11,406.08

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Solution

The fourth proportional to 18,482.56, 25,500.16 and 11,406.08 is: 15,736.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,482.56 : 25,500.16 = 11,406.08 : x
  2. Step 2: Convert to fraction form
    18,482.56/25,500.16 = 11,406.08/x
  3. Step 3: Cross multiply
    18,482.56x = 25,500.16 × 11,406.08
  4. Step 4: Simplify right side
    18,482.56x = 290,856,864.97
  5. Step 5: Solve for x
    x = 290,856,864.97/18,482.56
  6. Step 6: Final answer
    x = 15,736.83

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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.