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Finding the Fourth Proportional to 18,110.28, 27,165.20 and 4,962.64

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Solution

The fourth proportional to 18,110.28, 27,165.20 and 4,962.64 is: 7,443.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,110.28 : 27,165.20 = 4,962.64 : x
  2. Step 2: Convert to fraction form
    18,110.28/27,165.20 = 4,962.64/x
  3. Step 3: Cross multiply
    18,110.28x = 27,165.20 × 4,962.64
  4. Step 4: Simplify right side
    18,110.28x = 134,811,108.13
  5. Step 5: Solve for x
    x = 134,811,108.13/18,110.28
  6. Step 6: Final answer
    x = 7,443.90

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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.