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Finding the Fourth Proportional to 2,799.92, 4,200.74 and 1,156.59

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Solution

The fourth proportional to 2,799.92, 4,200.74 and 1,156.59 is: 1,735.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,799.92 : 4,200.74 = 1,156.59 : x
  2. Step 2: Convert to fraction form
    2,799.92/4,200.74 = 1,156.59/x
  3. Step 3: Cross multiply
    2,799.92x = 4,200.74 × 1,156.59
  4. Step 4: Simplify right side
    2,799.92x = 4,858,528.09
  5. Step 5: Solve for x
    x = 4,858,528.09/2,799.92
  6. Step 6: Final answer
    x = 1,735.24

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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.