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Finding the Fourth Proportional to 18,231.66, 27,347.49 and 5,084.19

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Solution

The fourth proportional to 18,231.66, 27,347.49 and 5,084.19 is: 7,626.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,231.66 : 27,347.49 = 5,084.19 : x
  2. Step 2: Convert to fraction form
    18,231.66/27,347.49 = 5,084.19/x
  3. Step 3: Cross multiply
    18,231.66x = 27,347.49 × 5,084.19
  4. Step 4: Simplify right side
    18,231.66x = 139,039,835.18
  5. Step 5: Solve for x
    x = 139,039,835.18/18,231.66
  6. Step 6: Final answer
    x = 7,626.29

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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.