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Finding the Fourth Proportional to 5,836.78, 8,753.58 and 1,940.68

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Solution

The fourth proportional to 5,836.78, 8,753.58 and 1,940.68 is: 2,910.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,836.78 : 8,753.58 = 1,940.68 : x
  2. Step 2: Convert to fraction form
    5,836.78/8,753.58 = 1,940.68/x
  3. Step 3: Cross multiply
    5,836.78x = 8,753.58 × 1,940.68
  4. Step 4: Simplify right side
    5,836.78x = 16,987,897.63
  5. Step 5: Solve for x
    x = 16,987,897.63/5,836.78
  6. Step 6: Final answer
    x = 2,910.49

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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.