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Finding the Fourth Proportional to 18,482.43, 25,505.48 and 11,028.99

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Solution

The fourth proportional to 18,482.43, 25,505.48 and 11,028.99 is: 15,219.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,482.43 : 25,505.48 = 11,028.99 : x
  2. Step 2: Convert to fraction form
    18,482.43/25,505.48 = 11,028.99/x
  3. Step 3: Cross multiply
    18,482.43x = 25,505.48 × 11,028.99
  4. Step 4: Simplify right side
    18,482.43x = 281,299,628.72
  5. Step 5: Solve for x
    x = 281,299,628.72/18,482.43
  6. Step 6: Final answer
    x = 15,219.84

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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.