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Finding the Fourth Proportional to 18,557.44, 27,813.12 and 8,683.84

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Solution

The fourth proportional to 18,557.44, 27,813.12 and 8,683.84 is: 13,014.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,557.44 : 27,813.12 = 8,683.84 : x
  2. Step 2: Convert to fraction form
    18,557.44/27,813.12 = 8,683.84/x
  3. Step 3: Cross multiply
    18,557.44x = 27,813.12 × 8,683.84
  4. Step 4: Simplify right side
    18,557.44x = 241,524,683.98
  5. Step 5: Solve for x
    x = 241,524,683.98/18,557.44
  6. Step 6: Final answer
    x = 13,014.98

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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.