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Finding the Fourth Proportional to 7,751.14, 10,696.79 and 4,765.28

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Solution

The fourth proportional to 7,751.14, 10,696.79 and 4,765.28 is: 6,576.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.14 : 10,696.79 = 4,765.28 : x
  2. Step 2: Convert to fraction form
    7,751.14/10,696.79 = 4,765.28/x
  3. Step 3: Cross multiply
    7,751.14x = 10,696.79 × 4,765.28
  4. Step 4: Simplify right side
    7,751.14x = 50,973,122.14
  5. Step 5: Solve for x
    x = 50,973,122.14/7,751.14
  6. Step 6: Final answer
    x = 6,576.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.