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Finding the Fourth Proportional to 2,054.51, 3,082.07 and 755.88

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Solution

The fourth proportional to 2,054.51, 3,082.07 and 755.88 is: 1,133.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,054.51 : 3,082.07 = 755.88 : x
  2. Step 2: Convert to fraction form
    2,054.51/3,082.07 = 755.88/x
  3. Step 3: Cross multiply
    2,054.51x = 3,082.07 × 755.88
  4. Step 4: Simplify right side
    2,054.51x = 2,329,676.96
  5. Step 5: Solve for x
    x = 2,329,676.96/2,054.51
  6. Step 6: Final answer
    x = 1,133.93

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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.