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Finding the Fourth Proportional to 7,751.76, 11,632.32 and 3,369.36

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Solution

The fourth proportional to 7,751.76, 11,632.32 and 3,369.36 is: 5,056.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.76 : 11,632.32 = 3,369.36 : x
  2. Step 2: Convert to fraction form
    7,751.76/11,632.32 = 3,369.36/x
  3. Step 3: Cross multiply
    7,751.76x = 11,632.32 × 3,369.36
  4. Step 4: Simplify right side
    7,751.76x = 39,193,473.72
  5. Step 5: Solve for x
    x = 39,193,473.72/7,751.76
  6. Step 6: Final answer
    x = 5,056.07

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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.