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Finding the Fourth Proportional to 18,388.49, 25,372.25 and 12,024.41

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Solution

The fourth proportional to 18,388.49, 25,372.25 and 12,024.41 is: 16,591.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388.49 : 25,372.25 = 12,024.41 : x
  2. Step 2: Convert to fraction form
    18,388.49/25,372.25 = 12,024.41/x
  3. Step 3: Cross multiply
    18,388.49x = 25,372.25 × 12,024.41
  4. Step 4: Simplify right side
    18,388.49x = 305,086,276.50
  5. Step 5: Solve for x
    x = 305,086,276.50/18,388.49
  6. Step 6: Final answer
    x = 16,591.15

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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.