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Finding the Fourth Proportional to 18,883.53, 28,313.15 and 16,251.84

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Solution

The fourth proportional to 18,883.53, 28,313.15 and 16,251.84 is: 24,367.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,883.53 : 28,313.15 = 16,251.84 : x
  2. Step 2: Convert to fraction form
    18,883.53/28,313.15 = 16,251.84/x
  3. Step 3: Cross multiply
    18,883.53x = 28,313.15 × 16,251.84
  4. Step 4: Simplify right side
    18,883.53x = 460,140,702.44
  5. Step 5: Solve for x
    x = 460,140,702.44/18,883.53
  6. Step 6: Final answer
    x = 24,367.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.