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Finding the Fourth Proportional to 17,231.40, 25,850.94 and 9,438.12

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Solution

The fourth proportional to 17,231.40, 25,850.94 and 9,438.12 is: 14,159.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,231.40 : 25,850.94 = 9,438.12 : x
  2. Step 2: Convert to fraction form
    17,231.40/25,850.94 = 9,438.12/x
  3. Step 3: Cross multiply
    17,231.40x = 25,850.94 × 9,438.12
  4. Step 4: Simplify right side
    17,231.40x = 243,984,273.83
  5. Step 5: Solve for x
    x = 243,984,273.83/17,231.40
  6. Step 6: Final answer
    x = 14,159.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.