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Finding the Fourth Proportional to 18,827.27, 28,185.42 and 16,491.84

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Solution

The fourth proportional to 18,827.27, 28,185.42 and 16,491.84 is: 24,689.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.27 : 28,185.42 = 16,491.84 : x
  2. Step 2: Convert to fraction form
    18,827.27/28,185.42 = 16,491.84/x
  3. Step 3: Cross multiply
    18,827.27x = 28,185.42 × 16,491.84
  4. Step 4: Simplify right side
    18,827.27x = 464,829,436.97
  5. Step 5: Solve for x
    x = 464,829,436.97/18,827.27
  6. Step 6: Final answer
    x = 24,689.16

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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.