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Finding the Fourth Proportional to 17,172.48, 25,759.92 and 5,486.64

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Solution

The fourth proportional to 17,172.48, 25,759.92 and 5,486.64 is: 8,230.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,172.48 : 25,759.92 = 5,486.64 : x
  2. Step 2: Convert to fraction form
    17,172.48/25,759.92 = 5,486.64/x
  3. Step 3: Cross multiply
    17,172.48x = 25,759.92 × 5,486.64
  4. Step 4: Simplify right side
    17,172.48x = 141,335,407.47
  5. Step 5: Solve for x
    x = 141,335,407.47/17,172.48
  6. Step 6: Final answer
    x = 8,230.34

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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.