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Finding the Fourth Proportional to 8,745.56, 13,123.82 and 3,551.44

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Solution

The fourth proportional to 8,745.56, 13,123.82 and 3,551.44 is: 5,329.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,745.56 : 13,123.82 = 3,551.44 : x
  2. Step 2: Convert to fraction form
    8,745.56/13,123.82 = 3,551.44/x
  3. Step 3: Cross multiply
    8,745.56x = 13,123.82 × 3,551.44
  4. Step 4: Simplify right side
    8,745.56x = 46,608,459.30
  5. Step 5: Solve for x
    x = 46,608,459.30/8,745.56
  6. Step 6: Final answer
    x = 5,329.39

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1.5x scale

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.