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Finding the Fourth Proportional to 18,596.34, 27,942.81 and 17,381.50

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Solution

The fourth proportional to 18,596.34, 27,942.81 and 17,381.50 is: 26,117.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,596.34 : 27,942.81 = 17,381.50 : x
  2. Step 2: Convert to fraction form
    18,596.34/27,942.81 = 17,381.50/x
  3. Step 3: Cross multiply
    18,596.34x = 27,942.81 × 17,381.50
  4. Step 4: Simplify right side
    18,596.34x = 485,687,882.16
  5. Step 5: Solve for x
    x = 485,687,882.16/18,596.34
  6. Step 6: Final answer
    x = 26,117.39

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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.