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Finding the Fourth Proportional to 2,712.44, 4,072.02 and 2,699.96

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Solution

The fourth proportional to 2,712.44, 4,072.02 and 2,699.96 is: 4,053.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,712.44 : 4,072.02 = 2,699.96 : x
  2. Step 2: Convert to fraction form
    2,712.44/4,072.02 = 2,699.96/x
  3. Step 3: Cross multiply
    2,712.44x = 4,072.02 × 2,699.96
  4. Step 4: Simplify right side
    2,712.44x = 10,994,291.12
  5. Step 5: Solve for x
    x = 10,994,291.12/2,712.44
  6. Step 6: Final answer
    x = 4,053.28

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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.