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Finding the Fourth Proportional to 2,252.83, 3,379.14 and 692.77

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Solution

The fourth proportional to 2,252.83, 3,379.14 and 692.77 is: 1,039.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,252.83 : 3,379.14 = 692.77 : x
  2. Step 2: Convert to fraction form
    2,252.83/3,379.14 = 692.77/x
  3. Step 3: Cross multiply
    2,252.83x = 3,379.14 × 692.77
  4. Step 4: Simplify right side
    2,252.83x = 2,340,966.82
  5. Step 5: Solve for x
    x = 2,340,966.82/2,252.83
  6. Step 6: Final answer
    x = 1,039.12

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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.