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Finding the Fourth Proportional to 17,161.70, 23,686.89 and 10,092.20

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Solution

The fourth proportional to 17,161.70, 23,686.89 and 10,092.20 is: 13,929.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,161.70 : 23,686.89 = 10,092.20 : x
  2. Step 2: Convert to fraction form
    17,161.70/23,686.89 = 10,092.20/x
  3. Step 3: Cross multiply
    17,161.70x = 23,686.89 × 10,092.20
  4. Step 4: Simplify right side
    17,161.70x = 239,052,831.26
  5. Step 5: Solve for x
    x = 239,052,831.26/17,161.70
  6. Step 6: Final answer
    x = 13,929.44

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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.