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Finding the Fourth Proportional to 69,611.22, 104,415.81 and 17,021.16

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Solution

The fourth proportional to 69,611.22, 104,415.81 and 17,021.16 is: 25,531.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,611.22 : 104,415.81 = 17,021.16 : x
  2. Step 2: Convert to fraction form
    69,611.22/104,415.81 = 17,021.16/x
  3. Step 3: Cross multiply
    69,611.22x = 104,415.81 × 17,021.16
  4. Step 4: Simplify right side
    69,611.22x = 1,777,278,486.25
  5. Step 5: Solve for x
    x = 1,777,278,486.25/69,611.22
  6. Step 6: Final answer
    x = 25,531.49

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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.