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Finding the Fourth Proportional to 18,393.68, 27,553.08 and 16,861.07

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Solution

The fourth proportional to 18,393.68, 27,553.08 and 16,861.07 is: 25,257.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,393.68 : 27,553.08 = 16,861.07 : x
  2. Step 2: Convert to fraction form
    18,393.68/27,553.08 = 16,861.07/x
  3. Step 3: Cross multiply
    18,393.68x = 27,553.08 × 16,861.07
  4. Step 4: Simplify right side
    18,393.68x = 464,574,433.47
  5. Step 5: Solve for x
    x = 464,574,433.47/18,393.68
  6. Step 6: Final answer
    x = 25,257.28

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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.