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Finding the Fourth Proportional to 18,039.22, 24,878.02 and 11,325.48

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Solution

The fourth proportional to 18,039.22, 24,878.02 and 11,325.48 is: 15,619.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,039.22 : 24,878.02 = 11,325.48 : x
  2. Step 2: Convert to fraction form
    18,039.22/24,878.02 = 11,325.48/x
  3. Step 3: Cross multiply
    18,039.22x = 24,878.02 × 11,325.48
  4. Step 4: Simplify right side
    18,039.22x = 281,755,517.95
  5. Step 5: Solve for x
    x = 281,755,517.95/18,039.22
  6. Step 6: Final answer
    x = 15,619.05

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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.