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Finding the Fourth Proportional to 2,750.58, 3,796.11 and 1,911.06

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Solution

The fourth proportional to 2,750.58, 3,796.11 and 1,911.06 is: 2,637.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.58 : 3,796.11 = 1,911.06 : x
  2. Step 2: Convert to fraction form
    2,750.58/3,796.11 = 1,911.06/x
  3. Step 3: Cross multiply
    2,750.58x = 3,796.11 × 1,911.06
  4. Step 4: Simplify right side
    2,750.58x = 7,254,593.98
  5. Step 5: Solve for x
    x = 7,254,593.98/2,750.58
  6. Step 6: Final answer
    x = 2,637.48

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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.