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Finding the Fourth Proportional to 4,751.52, 7,121.50 and 3,365.26

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Solution

The fourth proportional to 4,751.52, 7,121.50 and 3,365.26 is: 5,043.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.52 : 7,121.50 = 3,365.26 : x
  2. Step 2: Convert to fraction form
    4,751.52/7,121.50 = 3,365.26/x
  3. Step 3: Cross multiply
    4,751.52x = 7,121.50 × 3,365.26
  4. Step 4: Simplify right side
    4,751.52x = 23,965,699.09
  5. Step 5: Solve for x
    x = 23,965,699.09/4,751.52
  6. Step 6: Final answer
    x = 5,043.80

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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.