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Finding the Fourth Proportional to 18,119.62, 24,971.22 and 14,134.42

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Solution

The fourth proportional to 18,119.62, 24,971.22 and 14,134.42 is: 19,479.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.62 : 24,971.22 = 14,134.42 : x
  2. Step 2: Convert to fraction form
    18,119.62/24,971.22 = 14,134.42/x
  3. Step 3: Cross multiply
    18,119.62x = 24,971.22 × 14,134.42
  4. Step 4: Simplify right side
    18,119.62x = 352,953,711.39
  5. Step 5: Solve for x
    x = 352,953,711.39/18,119.62
  6. Step 6: Final answer
    x = 19,479.09

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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.