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Finding the Fourth Proportional to 18,034.96, 24,920.04 and 13,879.12

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Solution

The fourth proportional to 18,034.96, 24,920.04 and 13,879.12 is: 19,177.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,034.96 : 24,920.04 = 13,879.12 : x
  2. Step 2: Convert to fraction form
    18,034.96/24,920.04 = 13,879.12/x
  3. Step 3: Cross multiply
    18,034.96x = 24,920.04 × 13,879.12
  4. Step 4: Simplify right side
    18,034.96x = 345,868,225.56
  5. Step 5: Solve for x
    x = 345,868,225.56/18,034.96
  6. Step 6: Final answer
    x = 19,177.65

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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.