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Finding the Fourth Proportional to 3,754.56, 5,181.36 and 2,076

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Solution

The fourth proportional to 3,754.56, 5,181.36 and 2,076 is: 2,864.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,754.56 : 5,181.36 = 2,076 : x
  2. Step 2: Convert to fraction form
    3,754.56/5,181.36 = 2,076/x
  3. Step 3: Cross multiply
    3,754.56x = 5,181.36 × 2,076
  4. Step 4: Simplify right side
    3,754.56x = 10,756,503.36
  5. Step 5: Solve for x
    x = 10,756,503.36/3,754.56
  6. Step 6: Final answer
    x = 2,864.92

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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.