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Finding the Fourth Proportional to 18,245.98, 27,369.65 and 8,248.83

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Solution

The fourth proportional to 18,245.98, 27,369.65 and 8,248.83 is: 12,373.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.98 : 27,369.65 = 8,248.83 : x
  2. Step 2: Convert to fraction form
    18,245.98/27,369.65 = 8,248.83/x
  3. Step 3: Cross multiply
    18,245.98x = 27,369.65 × 8,248.83
  4. Step 4: Simplify right side
    18,245.98x = 225,767,590.01
  5. Step 5: Solve for x
    x = 225,767,590.01/18,245.98
  6. Step 6: Final answer
    x = 12,373.55

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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.