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Finding the Fourth Proportional to 18,662.10, 27,992.55 and 6,182.70

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Solution

The fourth proportional to 18,662.10, 27,992.55 and 6,182.70 is: 9,273.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,662.10 : 27,992.55 = 6,182.70 : x
  2. Step 2: Convert to fraction form
    18,662.10/27,992.55 = 6,182.70/x
  3. Step 3: Cross multiply
    18,662.10x = 27,992.55 × 6,182.70
  4. Step 4: Simplify right side
    18,662.10x = 173,069,538.89
  5. Step 5: Solve for x
    x = 173,069,538.89/18,662.10
  6. Step 6: Final answer
    x = 9,273.85

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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.