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Finding the Fourth Proportional to 1,676.67, 2,515.82 and 1,051.84

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Solution

The fourth proportional to 1,676.67, 2,515.82 and 1,051.84 is: 1,578.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676.67 : 2,515.82 = 1,051.84 : x
  2. Step 2: Convert to fraction form
    1,676.67/2,515.82 = 1,051.84/x
  3. Step 3: Cross multiply
    1,676.67x = 2,515.82 × 1,051.84
  4. Step 4: Simplify right side
    1,676.67x = 2,646,240.11
  5. Step 5: Solve for x
    x = 2,646,240.11/1,676.67
  6. Step 6: Final answer
    x = 1,578.27

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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.