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Finding the Fourth Proportional to 18,118.62, 24,969.84 and 14,133.42

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Solution

The fourth proportional to 18,118.62, 24,969.84 and 14,133.42 is: 19,477.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.62 : 24,969.84 = 14,133.42 : x
  2. Step 2: Convert to fraction form
    18,118.62/24,969.84 = 14,133.42/x
  3. Step 3: Cross multiply
    18,118.62x = 24,969.84 × 14,133.42
  4. Step 4: Simplify right side
    18,118.62x = 352,909,236.05
  5. Step 5: Solve for x
    x = 352,909,236.05/18,118.62
  6. Step 6: Final answer
    x = 19,477.71

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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.