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Finding the Fourth Proportional to 3,770.52, 5,657.66 and 1,692.01

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Solution

The fourth proportional to 3,770.52, 5,657.66 and 1,692.01 is: 2,538.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,770.52 : 5,657.66 = 1,692.01 : x
  2. Step 2: Convert to fraction form
    3,770.52/5,657.66 = 1,692.01/x
  3. Step 3: Cross multiply
    3,770.52x = 5,657.66 × 1,692.01
  4. Step 4: Simplify right side
    3,770.52x = 9,572,807.38
  5. Step 5: Solve for x
    x = 9,572,807.38/3,770.52
  6. Step 6: Final answer
    x = 2,538.86

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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.