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Finding the Fourth Proportional to 18,842.26, 28,136.05 and 16,382.74

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Solution

The fourth proportional to 18,842.26, 28,136.05 and 16,382.74 is: 24,463.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,842.26 : 28,136.05 = 16,382.74 : x
  2. Step 2: Convert to fraction form
    18,842.26/28,136.05 = 16,382.74/x
  3. Step 3: Cross multiply
    18,842.26x = 28,136.05 × 16,382.74
  4. Step 4: Simplify right side
    18,842.26x = 460,945,591.78
  5. Step 5: Solve for x
    x = 460,945,591.78/18,842.26
  6. Step 6: Final answer
    x = 24,463.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.