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Finding the Fourth Proportional to 18,167.63, 27,239.72 and 8,674.81

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Solution

The fourth proportional to 18,167.63, 27,239.72 and 8,674.81 is: 13,006.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,167.63 : 27,239.72 = 8,674.81 : x
  2. Step 2: Convert to fraction form
    18,167.63/27,239.72 = 8,674.81/x
  3. Step 3: Cross multiply
    18,167.63x = 27,239.72 × 8,674.81
  4. Step 4: Simplify right side
    18,167.63x = 236,299,374.13
  5. Step 5: Solve for x
    x = 236,299,374.13/18,167.63
  6. Step 6: Final answer
    x = 13,006.62

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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.