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Finding the Fourth Proportional to 18,551.40, 27,827.10 and 16,704.60

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Solution

The fourth proportional to 18,551.40, 27,827.10 and 16,704.60 is: 25,056.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,551.40 : 27,827.10 = 16,704.60 : x
  2. Step 2: Convert to fraction form
    18,551.40/27,827.10 = 16,704.60/x
  3. Step 3: Cross multiply
    18,551.40x = 27,827.10 × 16,704.60
  4. Step 4: Simplify right side
    18,551.40x = 464,840,574.66
  5. Step 5: Solve for x
    x = 464,840,574.66/18,551.40
  6. Step 6: Final answer
    x = 25,056.90

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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.