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Finding the Fourth Proportional to 21,993.67, 32,955.91 and 17,008.25

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Solution

The fourth proportional to 21,993.67, 32,955.91 and 17,008.25 is: 25,485.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,993.67 : 32,955.91 = 17,008.25 : x
  2. Step 2: Convert to fraction form
    21,993.67/32,955.91 = 17,008.25/x
  3. Step 3: Cross multiply
    21,993.67x = 32,955.91 × 17,008.25
  4. Step 4: Simplify right side
    21,993.67x = 560,522,396.13
  5. Step 5: Solve for x
    x = 560,522,396.13/21,993.67
  6. Step 6: Final answer
    x = 25,485.63

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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.