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Finding the Fourth Proportional to 12,553.89, 17,324.34 and 6,964.89

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Solution

The fourth proportional to 12,553.89, 17,324.34 and 6,964.89 is: 9,611.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,553.89 : 17,324.34 = 6,964.89 : x
  2. Step 2: Convert to fraction form
    12,553.89/17,324.34 = 6,964.89/x
  3. Step 3: Cross multiply
    12,553.89x = 17,324.34 × 6,964.89
  4. Step 4: Simplify right side
    12,553.89x = 120,662,122.42
  5. Step 5: Solve for x
    x = 120,662,122.42/12,553.89
  6. Step 6: Final answer
    x = 9,611.53

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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.