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Finding the Fourth Proportional to 17,193.70, 23,718.81 and 11,529.70

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Solution

The fourth proportional to 17,193.70, 23,718.81 and 11,529.70 is: 15,905.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,193.70 : 23,718.81 = 11,529.70 : x
  2. Step 2: Convert to fraction form
    17,193.70/23,718.81 = 11,529.70/x
  3. Step 3: Cross multiply
    17,193.70x = 23,718.81 × 11,529.70
  4. Step 4: Simplify right side
    17,193.70x = 273,470,763.66
  5. Step 5: Solve for x
    x = 273,470,763.66/17,193.70
  6. Step 6: Final answer
    x = 15,905.29

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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.