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Finding the Fourth Proportional to 17,640.54, 26,451.09 and 7,259.58

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Solution

The fourth proportional to 17,640.54, 26,451.09 and 7,259.58 is: 10,885.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,640.54 : 26,451.09 = 7,259.58 : x
  2. Step 2: Convert to fraction form
    17,640.54/26,451.09 = 7,259.58/x
  3. Step 3: Cross multiply
    17,640.54x = 26,451.09 × 7,259.58
  4. Step 4: Simplify right side
    17,640.54x = 192,023,803.94
  5. Step 5: Solve for x
    x = 192,023,803.94/17,640.54
  6. Step 6: Final answer
    x = 10,885.37

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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.