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Finding the Fourth Proportional to 17,860.61, 26,789.03 and 7,331.74

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Solution

The fourth proportional to 17,860.61, 26,789.03 and 7,331.74 is: 10,996.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,860.61 : 26,789.03 = 7,331.74 : x
  2. Step 2: Convert to fraction form
    17,860.61/26,789.03 = 7,331.74/x
  3. Step 3: Cross multiply
    17,860.61x = 26,789.03 × 7,331.74
  4. Step 4: Simplify right side
    17,860.61x = 196,410,202.81
  5. Step 5: Solve for x
    x = 196,410,202.81/17,860.61
  6. Step 6: Final answer
    x = 10,996.84

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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.