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Finding the Fourth Proportional to 18,245.82, 27,368.73 and 14,091.89

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Solution

The fourth proportional to 18,245.82, 27,368.73 and 14,091.89 is: 21,137.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245.82 : 27,368.73 = 14,091.89 : x
  2. Step 2: Convert to fraction form
    18,245.82/27,368.73 = 14,091.89/x
  3. Step 3: Cross multiply
    18,245.82x = 27,368.73 × 14,091.89
  4. Step 4: Simplify right side
    18,245.82x = 385,677,132.60
  5. Step 5: Solve for x
    x = 385,677,132.60/18,245.82
  6. Step 6: Final answer
    x = 21,137.84

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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.