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Finding the Fourth Proportional to 4,751.97, 7,129.52 and 2,286.47

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Solution

The fourth proportional to 4,751.97, 7,129.52 and 2,286.47 is: 3,430.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.97 : 7,129.52 = 2,286.47 : x
  2. Step 2: Convert to fraction form
    4,751.97/7,129.52 = 2,286.47/x
  3. Step 3: Cross multiply
    4,751.97x = 7,129.52 × 2,286.47
  4. Step 4: Simplify right side
    4,751.97x = 16,301,439.99
  5. Step 5: Solve for x
    x = 16,301,439.99/4,751.97
  6. Step 6: Final answer
    x = 3,430.46

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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.