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Finding the Fourth Proportional to 1,673.87, 2,508.98 and 892.96

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Solution

The fourth proportional to 1,673.87, 2,508.98 and 892.96 is: 1,338.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,673.87 : 2,508.98 = 892.96 : x
  2. Step 2: Convert to fraction form
    1,673.87/2,508.98 = 892.96/x
  3. Step 3: Cross multiply
    1,673.87x = 2,508.98 × 892.96
  4. Step 4: Simplify right side
    1,673.87x = 2,240,408.04
  5. Step 5: Solve for x
    x = 2,240,408.04/1,673.87
  6. Step 6: Final answer
    x = 1,338.46

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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.