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Finding the Fourth Proportional to 7,262.78, 10,892.25 and 1,996.54

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Solution

The fourth proportional to 7,262.78, 10,892.25 and 1,996.54 is: 2,994.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,262.78 : 10,892.25 = 1,996.54 : x
  2. Step 2: Convert to fraction form
    7,262.78/10,892.25 = 1,996.54/x
  3. Step 3: Cross multiply
    7,262.78x = 10,892.25 × 1,996.54
  4. Step 4: Simplify right side
    7,262.78x = 21,746,785.58
  5. Step 5: Solve for x
    x = 21,746,785.58/7,262.78
  6. Step 6: Final answer
    x = 2,994.28

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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.