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Finding the Fourth Proportional to 18,277.14, 27,426.65 and 16,789.98

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Solution

The fourth proportional to 18,277.14, 27,426.65 and 16,789.98 is: 25,195.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,277.14 : 27,426.65 = 16,789.98 : x
  2. Step 2: Convert to fraction form
    18,277.14/27,426.65 = 16,789.98/x
  3. Step 3: Cross multiply
    18,277.14x = 27,426.65 × 16,789.98
  4. Step 4: Simplify right side
    18,277.14x = 460,492,821.02
  5. Step 5: Solve for x
    x = 460,492,821.02/18,277.14
  6. Step 6: Final answer
    x = 25,195.02

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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.