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Finding the Fourth Proportional to 18,246.57, 27,369.80 and 4,395.57

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Solution

The fourth proportional to 18,246.57, 27,369.80 and 4,395.57 is: 6,593.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,246.57 : 27,369.80 = 4,395.57 : x
  2. Step 2: Convert to fraction form
    18,246.57/27,369.80 = 4,395.57/x
  3. Step 3: Cross multiply
    18,246.57x = 27,369.80 × 4,395.57
  4. Step 4: Simplify right side
    18,246.57x = 120,305,763.65
  5. Step 5: Solve for x
    x = 120,305,763.65/18,246.57
  6. Step 6: Final answer
    x = 6,593.34

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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.