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Finding the Fourth Proportional to 8,933.45, 13,396.82 and 7,174.13

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Solution

The fourth proportional to 8,933.45, 13,396.82 and 7,174.13 is: 10,758.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,933.45 : 13,396.82 = 7,174.13 : x
  2. Step 2: Convert to fraction form
    8,933.45/13,396.82 = 7,174.13/x
  3. Step 3: Cross multiply
    8,933.45x = 13,396.82 × 7,174.13
  4. Step 4: Simplify right side
    8,933.45x = 96,110,425.41
  5. Step 5: Solve for x
    x = 96,110,425.41/8,933.45
  6. Step 6: Final answer
    x = 10,758.50

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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.