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Finding the Fourth Proportional to 3,676.64, 5,074.20 and 2,083.76

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Solution

The fourth proportional to 3,676.64, 5,074.20 and 2,083.76 is: 2,875.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,676.64 : 5,074.20 = 2,083.76 : x
  2. Step 2: Convert to fraction form
    3,676.64/5,074.20 = 2,083.76/x
  3. Step 3: Cross multiply
    3,676.64x = 5,074.20 × 2,083.76
  4. Step 4: Simplify right side
    3,676.64x = 10,573,414.99
  5. Step 5: Solve for x
    x = 10,573,414.99/3,676.64
  6. Step 6: Final answer
    x = 2,875.84

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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.