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Finding the Fourth Proportional to 18,251.69, 27,373.35 and 5,104.99

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Solution

The fourth proportional to 18,251.69, 27,373.35 and 5,104.99 is: 7,656.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.69 : 27,373.35 = 5,104.99 : x
  2. Step 2: Convert to fraction form
    18,251.69/27,373.35 = 5,104.99/x
  3. Step 3: Cross multiply
    18,251.69x = 27,373.35 × 5,104.99
  4. Step 4: Simplify right side
    18,251.69x = 139,740,678.02
  5. Step 5: Solve for x
    x = 139,740,678.02/18,251.69
  6. Step 6: Final answer
    x = 7,656.31

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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.