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Finding the Fourth Proportional to 18,235.53, 27,353.25 and 5,087.97

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Solution

The fourth proportional to 18,235.53, 27,353.25 and 5,087.97 is: 7,631.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,235.53 : 27,353.25 = 5,087.97 : x
  2. Step 2: Convert to fraction form
    18,235.53/27,353.25 = 5,087.97/x
  3. Step 3: Cross multiply
    18,235.53x = 27,353.25 × 5,087.97
  4. Step 4: Simplify right side
    18,235.53x = 139,172,515.40
  5. Step 5: Solve for x
    x = 139,172,515.40/18,235.53
  6. Step 6: Final answer
    x = 7,631.94

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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.