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Finding the Fourth Proportional to 18,151.75, 24,992.13 and 16,490.80

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Solution

The fourth proportional to 18,151.75, 24,992.13 and 16,490.80 is: 22,705.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.75 : 24,992.13 = 16,490.80 : x
  2. Step 2: Convert to fraction form
    18,151.75/24,992.13 = 16,490.80/x
  3. Step 3: Cross multiply
    18,151.75x = 24,992.13 × 16,490.80
  4. Step 4: Simplify right side
    18,151.75x = 412,140,217.40
  5. Step 5: Solve for x
    x = 412,140,217.40/18,151.75
  6. Step 6: Final answer
    x = 22,705.26

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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.