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Finding the Fourth Proportional to 31,503.38, 43,474.79 and 17,355.92

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Solution

The fourth proportional to 31,503.38, 43,474.79 and 17,355.92 is: 23,951.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,503.38 : 43,474.79 = 17,355.92 : x
  2. Step 2: Convert to fraction form
    31,503.38/43,474.79 = 17,355.92/x
  3. Step 3: Cross multiply
    31,503.38x = 43,474.79 × 17,355.92
  4. Step 4: Simplify right side
    31,503.38x = 754,544,803.27
  5. Step 5: Solve for x
    x = 754,544,803.27/31,503.38
  6. Step 6: Final answer
    x = 23,951.24

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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.