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Finding the Fourth Proportional to 18,611.16, 25,683.84 and 10,227.84

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Solution

The fourth proportional to 18,611.16, 25,683.84 and 10,227.84 is: 14,114.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611.16 : 25,683.84 = 10,227.84 : x
  2. Step 2: Convert to fraction form
    18,611.16/25,683.84 = 10,227.84/x
  3. Step 3: Cross multiply
    18,611.16x = 25,683.84 × 10,227.84
  4. Step 4: Simplify right side
    18,611.16x = 262,690,206.11
  5. Step 5: Solve for x
    x = 262,690,206.11/18,611.16
  6. Step 6: Final answer
    x = 14,114.66

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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.