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Finding the Fourth Proportional to 8,369.87, 12,554.87 and 3,372.30

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Solution

The fourth proportional to 8,369.87, 12,554.87 and 3,372.30 is: 5,058.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,369.87 : 12,554.87 = 3,372.30 : x
  2. Step 2: Convert to fraction form
    8,369.87/12,554.87 = 3,372.30/x
  3. Step 3: Cross multiply
    8,369.87x = 12,554.87 × 3,372.30
  4. Step 4: Simplify right side
    8,369.87x = 42,338,771.24
  5. Step 5: Solve for x
    x = 42,338,771.24/8,369.87
  6. Step 6: Final answer
    x = 5,058.48

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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.