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Finding the Fourth Proportional to 15,174.76, 22,786.84 and 9,368.28

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Solution

The fourth proportional to 15,174.76, 22,786.84 and 9,368.28 is: 14,067.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174.76 : 22,786.84 = 9,368.28 : x
  2. Step 2: Convert to fraction form
    15,174.76/22,786.84 = 9,368.28/x
  3. Step 3: Cross multiply
    15,174.76x = 22,786.84 × 9,368.28
  4. Step 4: Simplify right side
    15,174.76x = 213,473,497.44
  5. Step 5: Solve for x
    x = 213,473,497.44/15,174.76
  6. Step 6: Final answer
    x = 14,067.67

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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.