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Finding the Fourth Proportional to 5,582.47, 8,375.64 and 3,715.85

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Solution

The fourth proportional to 5,582.47, 8,375.64 and 3,715.85 is: 5,575.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,582.47 : 8,375.64 = 3,715.85 : x
  2. Step 2: Convert to fraction form
    5,582.47/8,375.64 = 3,715.85/x
  3. Step 3: Cross multiply
    5,582.47x = 8,375.64 × 3,715.85
  4. Step 4: Simplify right side
    5,582.47x = 31,122,621.89
  5. Step 5: Solve for x
    x = 31,122,621.89/5,582.47
  6. Step 6: Final answer
    x = 5,575.06

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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.