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Finding the Fourth Proportional to 17,292.80, 25,929.60 and 6,892.80

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Solution

The fourth proportional to 17,292.80, 25,929.60 and 6,892.80 is: 10,335.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,292.80 : 25,929.60 = 6,892.80 : x
  2. Step 2: Convert to fraction form
    17,292.80/25,929.60 = 6,892.80/x
  3. Step 3: Cross multiply
    17,292.80x = 25,929.60 × 6,892.80
  4. Step 4: Simplify right side
    17,292.80x = 178,727,546.88
  5. Step 5: Solve for x
    x = 178,727,546.88/17,292.80
  6. Step 6: Final answer
    x = 10,335.37

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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.