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Finding the Fourth Proportional to 2,699.25, 4,048.97 and 751.46

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Solution

The fourth proportional to 2,699.25, 4,048.97 and 751.46 is: 1,127.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,699.25 : 4,048.97 = 751.46 : x
  2. Step 2: Convert to fraction form
    2,699.25/4,048.97 = 751.46/x
  3. Step 3: Cross multiply
    2,699.25x = 4,048.97 × 751.46
  4. Step 4: Simplify right side
    2,699.25x = 3,042,614.99
  5. Step 5: Solve for x
    x = 3,042,614.99/2,699.25
  6. Step 6: Final answer
    x = 1,127.21

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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.