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Finding the Fourth Proportional to 2,692.85, 3,715.90 and 1,497.83

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Solution

The fourth proportional to 2,692.85, 3,715.90 and 1,497.83 is: 2,066.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,692.85 : 3,715.90 = 1,497.83 : x
  2. Step 2: Convert to fraction form
    2,692.85/3,715.90 = 1,497.83/x
  3. Step 3: Cross multiply
    2,692.85x = 3,715.90 × 1,497.83
  4. Step 4: Simplify right side
    2,692.85x = 5,565,764.17
  5. Step 5: Solve for x
    x = 5,565,764.17/2,692.85
  6. Step 6: Final answer
    x = 2,066.87

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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.