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Finding the Fourth Proportional to 6,338.76, 9,509.78 and 3,708.50

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Solution

The fourth proportional to 6,338.76, 9,509.78 and 3,708.50 is: 5,563.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,338.76 : 9,509.78 = 3,708.50 : x
  2. Step 2: Convert to fraction form
    6,338.76/9,509.78 = 3,708.50/x
  3. Step 3: Cross multiply
    6,338.76x = 9,509.78 × 3,708.50
  4. Step 4: Simplify right side
    6,338.76x = 35,267,019.13
  5. Step 5: Solve for x
    x = 35,267,019.13/6,338.76
  6. Step 6: Final answer
    x = 5,563.71

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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.