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Finding the Fourth Proportional to 18,015.68, 27,023.52 and 4,868.39

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Solution

The fourth proportional to 18,015.68, 27,023.52 and 4,868.39 is: 7,302.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.68 : 27,023.52 = 4,868.39 : x
  2. Step 2: Convert to fraction form
    18,015.68/27,023.52 = 4,868.39/x
  3. Step 3: Cross multiply
    18,015.68x = 27,023.52 × 4,868.39
  4. Step 4: Simplify right side
    18,015.68x = 131,560,899.42
  5. Step 5: Solve for x
    x = 131,560,899.42/18,015.68
  6. Step 6: Final answer
    x = 7,302.58

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.