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Finding the Fourth Proportional to 17,168.88, 25,743.48 and 9,153.80

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Solution

The fourth proportional to 17,168.88, 25,743.48 and 9,153.80 is: 13,725.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,168.88 : 25,743.48 = 9,153.80 : x
  2. Step 2: Convert to fraction form
    17,168.88/25,743.48 = 9,153.80/x
  3. Step 3: Cross multiply
    17,168.88x = 25,743.48 × 9,153.80
  4. Step 4: Simplify right side
    17,168.88x = 235,650,667.22
  5. Step 5: Solve for x
    x = 235,650,667.22/17,168.88
  6. Step 6: Final answer
    x = 13,725.45

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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.