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Finding the Fourth Proportional to 14,780.34, 22,174.56 and 7,375.86

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Solution

The fourth proportional to 14,780.34, 22,174.56 and 7,375.86 is: 11,065.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.34 : 22,174.56 = 7,375.86 : x
  2. Step 2: Convert to fraction form
    14,780.34/22,174.56 = 7,375.86/x
  3. Step 3: Cross multiply
    14,780.34x = 22,174.56 × 7,375.86
  4. Step 4: Simplify right side
    14,780.34x = 163,556,450.12
  5. Step 5: Solve for x
    x = 163,556,450.12/14,780.34
  6. Step 6: Final answer
    x = 11,065.81

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.