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Finding the Fourth Proportional to 17,687.92, 26,637.22 and 15,406.96

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Solution

The fourth proportional to 17,687.92, 26,637.22 and 15,406.96 is: 23,202.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,687.92 : 26,637.22 = 15,406.96 : x
  2. Step 2: Convert to fraction form
    17,687.92/26,637.22 = 15,406.96/x
  3. Step 3: Cross multiply
    17,687.92x = 26,637.22 × 15,406.96
  4. Step 4: Simplify right side
    17,687.92x = 410,398,583.05
  5. Step 5: Solve for x
    x = 410,398,583.05/17,687.92
  6. Step 6: Final answer
    x = 23,202.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.