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Finding the Fourth Proportional to 18,135.59, 27,207.32 and 7,462.01

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Solution

The fourth proportional to 18,135.59, 27,207.32 and 7,462.01 is: 11,194.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.59 : 27,207.32 = 7,462.01 : x
  2. Step 2: Convert to fraction form
    18,135.59/27,207.32 = 7,462.01/x
  3. Step 3: Cross multiply
    18,135.59x = 27,207.32 × 7,462.01
  4. Step 4: Simplify right side
    18,135.59x = 203,021,293.91
  5. Step 5: Solve for x
    x = 203,021,293.91/18,135.59
  6. Step 6: Final answer
    x = 11,194.63

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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.