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Finding the Fourth Proportional to 12,794.49, 17,655.03 and 9,439.11

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Solution

The fourth proportional to 12,794.49, 17,655.03 and 9,439.11 is: 13,024.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,794.49 : 17,655.03 = 9,439.11 : x
  2. Step 2: Convert to fraction form
    12,794.49/17,655.03 = 9,439.11/x
  3. Step 3: Cross multiply
    12,794.49x = 17,655.03 × 9,439.11
  4. Step 4: Simplify right side
    12,794.49x = 166,647,770.22
  5. Step 5: Solve for x
    x = 166,647,770.22/12,794.49
  6. Step 6: Final answer
    x = 13,024.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.