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Finding the Fourth Proportional to 18,080.57, 24,948.18 and 11,361.42

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Solution

The fourth proportional to 18,080.57, 24,948.18 and 11,361.42 is: 15,676.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,080.57 : 24,948.18 = 11,361.42 : x
  2. Step 2: Convert to fraction form
    18,080.57/24,948.18 = 11,361.42/x
  3. Step 3: Cross multiply
    18,080.57x = 24,948.18 × 11,361.42
  4. Step 4: Simplify right side
    18,080.57x = 283,446,751.22
  5. Step 5: Solve for x
    x = 283,446,751.22/18,080.57
  6. Step 6: Final answer
    x = 15,676.87

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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.