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Finding the Fourth Proportional to 3,951.45, 5,925.42 and 1,452.65

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Solution

The fourth proportional to 3,951.45, 5,925.42 and 1,452.65 is: 2,178.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.45 : 5,925.42 = 1,452.65 : x
  2. Step 2: Convert to fraction form
    3,951.45/5,925.42 = 1,452.65/x
  3. Step 3: Cross multiply
    3,951.45x = 5,925.42 × 1,452.65
  4. Step 4: Simplify right side
    3,951.45x = 8,607,561.36
  5. Step 5: Solve for x
    x = 8,607,561.36/3,951.45
  6. Step 6: Final answer
    x = 2,178.33

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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.