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Finding the Fourth Proportional to 18,349.27, 27,482.09 and 10,938.42

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Solution

The fourth proportional to 18,349.27, 27,482.09 and 10,938.42 is: 16,382.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,349.27 : 27,482.09 = 10,938.42 : x
  2. Step 2: Convert to fraction form
    18,349.27/27,482.09 = 10,938.42/x
  3. Step 3: Cross multiply
    18,349.27x = 27,482.09 × 10,938.42
  4. Step 4: Simplify right side
    18,349.27x = 300,610,510.91
  5. Step 5: Solve for x
    x = 300,610,510.91/18,349.27
  6. Step 6: Final answer
    x = 16,382.69

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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.