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Finding the Fourth Proportional to 9,012.49, 13,517.67 and 2,772.49

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Solution

The fourth proportional to 9,012.49, 13,517.67 and 2,772.49 is: 4,158.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,012.49 : 13,517.67 = 2,772.49 : x
  2. Step 2: Convert to fraction form
    9,012.49/13,517.67 = 2,772.49/x
  3. Step 3: Cross multiply
    9,012.49x = 13,517.67 × 2,772.49
  4. Step 4: Simplify right side
    9,012.49x = 37,477,604.90
  5. Step 5: Solve for x
    x = 37,477,604.90/9,012.49
  6. Step 6: Final answer
    x = 4,158.41

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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.