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Finding the Fourth Proportional to 18,359.65, 27,520.49 and 7,251.06

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Solution

The fourth proportional to 18,359.65, 27,520.49 and 7,251.06 is: 10,869.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.65 : 27,520.49 = 7,251.06 : x
  2. Step 2: Convert to fraction form
    18,359.65/27,520.49 = 7,251.06/x
  3. Step 3: Cross multiply
    18,359.65x = 27,520.49 × 7,251.06
  4. Step 4: Simplify right side
    18,359.65x = 199,552,724.22
  5. Step 5: Solve for x
    x = 199,552,724.22/18,359.65
  6. Step 6: Final answer
    x = 10,869.09

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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.