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Finding the Fourth Proportional to 18,462.53, 27,692.79 and 9,093.21

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Solution

The fourth proportional to 18,462.53, 27,692.79 and 9,093.21 is: 13,639.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,462.53 : 27,692.79 = 9,093.21 : x
  2. Step 2: Convert to fraction form
    18,462.53/27,692.79 = 9,093.21/x
  3. Step 3: Cross multiply
    18,462.53x = 27,692.79 × 9,093.21
  4. Step 4: Simplify right side
    18,462.53x = 251,816,354.96
  5. Step 5: Solve for x
    x = 251,816,354.96/18,462.53
  6. Step 6: Final answer
    x = 13,639.32

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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.