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Finding the Fourth Proportional to 5,748.99, 8,625.03 and 3,115.89

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Solution

The fourth proportional to 5,748.99, 8,625.03 and 3,115.89 is: 4,674.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,748.99 : 8,625.03 = 3,115.89 : x
  2. Step 2: Convert to fraction form
    5,748.99/8,625.03 = 3,115.89/x
  3. Step 3: Cross multiply
    5,748.99x = 8,625.03 × 3,115.89
  4. Step 4: Simplify right side
    5,748.99x = 26,874,644.73
  5. Step 5: Solve for x
    x = 26,874,644.73/5,748.99
  6. Step 6: Final answer
    x = 4,674.67

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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.