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Finding the Fourth Proportional to 18,231.84, 27,347.80 and 5,084.58

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Solution

The fourth proportional to 18,231.84, 27,347.80 and 5,084.58 is: 7,626.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.84 : 27,347.80 = 5,084.58 : x
  2. Step 2: Convert to fraction form
    18,231.84/27,347.80 = 5,084.58/x
  3. Step 3: Cross multiply
    18,231.84x = 27,347.80 × 5,084.58
  4. Step 4: Simplify right side
    18,231.84x = 139,052,076.92
  5. Step 5: Solve for x
    x = 139,052,076.92/18,231.84
  6. Step 6: Final answer
    x = 7,626.88

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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.