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Finding the Fourth Proportional to 3,692.72, 5,538.12 and 1,095.04

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Solution

The fourth proportional to 3,692.72, 5,538.12 and 1,095.04 is: 1,642.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,692.72 : 5,538.12 = 1,095.04 : x
  2. Step 2: Convert to fraction form
    3,692.72/5,538.12 = 1,095.04/x
  3. Step 3: Cross multiply
    3,692.72x = 5,538.12 × 1,095.04
  4. Step 4: Simplify right side
    3,692.72x = 6,064,462.92
  5. Step 5: Solve for x
    x = 6,064,462.92/3,692.72
  6. Step 6: Final answer
    x = 1,642.28

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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.