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Finding the Fourth Proportional to 17,412.78, 26,120.07 and 8,061.54

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Solution

The fourth proportional to 17,412.78, 26,120.07 and 8,061.54 is: 12,092.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,412.78 : 26,120.07 = 8,061.54 : x
  2. Step 2: Convert to fraction form
    17,412.78/26,120.07 = 8,061.54/x
  3. Step 3: Cross multiply
    17,412.78x = 26,120.07 × 8,061.54
  4. Step 4: Simplify right side
    17,412.78x = 210,567,989.11
  5. Step 5: Solve for x
    x = 210,567,989.11/17,412.78
  6. Step 6: Final answer
    x = 12,092.73

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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.