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Finding the Fourth Proportional to 18,134.21, 27,201.32 and 5,655.24

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Solution

The fourth proportional to 18,134.21, 27,201.32 and 5,655.24 is: 8,482.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,134.21 : 27,201.32 = 5,655.24 : x
  2. Step 2: Convert to fraction form
    18,134.21/27,201.32 = 5,655.24/x
  3. Step 3: Cross multiply
    18,134.21x = 27,201.32 × 5,655.24
  4. Step 4: Simplify right side
    18,134.21x = 153,829,992.92
  5. Step 5: Solve for x
    x = 153,829,992.92/18,134.21
  6. Step 6: Final answer
    x = 8,482.86

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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.