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Finding the Fourth Proportional to 18,158.34, 27,239.94 and 8,300.64

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Solution

The fourth proportional to 18,158.34, 27,239.94 and 8,300.64 is: 12,452.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,158.34 : 27,239.94 = 8,300.64 : x
  2. Step 2: Convert to fraction form
    18,158.34/27,239.94 = 8,300.64/x
  3. Step 3: Cross multiply
    18,158.34x = 27,239.94 × 8,300.64
  4. Step 4: Simplify right side
    18,158.34x = 226,108,935.56
  5. Step 5: Solve for x
    x = 226,108,935.56/18,158.34
  6. Step 6: Final answer
    x = 12,452.07

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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.