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Finding the Fourth Proportional to 17,321.81, 23,904.15 and 9,364.03

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Solution

The fourth proportional to 17,321.81, 23,904.15 and 9,364.03 is: 12,922.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,321.81 : 23,904.15 = 9,364.03 : x
  2. Step 2: Convert to fraction form
    17,321.81/23,904.15 = 9,364.03/x
  3. Step 3: Cross multiply
    17,321.81x = 23,904.15 × 9,364.03
  4. Step 4: Simplify right side
    17,321.81x = 223,839,202.75
  5. Step 5: Solve for x
    x = 223,839,202.75/17,321.81
  6. Step 6: Final answer
    x = 12,922.39

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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.