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Finding the Fourth Proportional to 56,692.38, 85,039.38 and 19,756.38

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Solution

The fourth proportional to 56,692.38, 85,039.38 and 19,756.38 is: 29,634.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,692.38 : 85,039.38 = 19,756.38 : x
  2. Step 2: Convert to fraction form
    56,692.38/85,039.38 = 19,756.38/x
  3. Step 3: Cross multiply
    56,692.38x = 85,039.38 × 19,756.38
  4. Step 4: Simplify right side
    56,692.38x = 1,680,070,306.24
  5. Step 5: Solve for x
    x = 1,680,070,306.24/56,692.38
  6. Step 6: Final answer
    x = 29,634.85

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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.