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Finding the Fourth Proportional to 7,752.11, 11,627.90 and 3,369.57

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Solution

The fourth proportional to 7,752.11, 11,627.90 and 3,369.57 is: 5,054.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,752.11 : 11,627.90 = 3,369.57 : x
  2. Step 2: Convert to fraction form
    7,752.11/11,627.90 = 3,369.57/x
  3. Step 3: Cross multiply
    7,752.11x = 11,627.90 × 3,369.57
  4. Step 4: Simplify right side
    7,752.11x = 39,180,964.86
  5. Step 5: Solve for x
    x = 39,180,964.86/7,752.11
  6. Step 6: Final answer
    x = 5,054.23

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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.