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Finding the Fourth Proportional to 17,648.34, 26,472.48 and 7,122.97

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Solution

The fourth proportional to 17,648.34, 26,472.48 and 7,122.97 is: 10,684.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,648.34 : 26,472.48 = 7,122.97 : x
  2. Step 2: Convert to fraction form
    17,648.34/26,472.48 = 7,122.97/x
  3. Step 3: Cross multiply
    17,648.34x = 26,472.48 × 7,122.97
  4. Step 4: Simplify right side
    17,648.34x = 188,562,680.87
  5. Step 5: Solve for x
    x = 188,562,680.87/17,648.34
  6. Step 6: Final answer
    x = 10,684.44

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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.