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Finding the Fourth Proportional to 2,733.66, 4,101.20 and 786.02

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Solution

The fourth proportional to 2,733.66, 4,101.20 and 786.02 is: 1,179.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,733.66 : 4,101.20 = 786.02 : x
  2. Step 2: Convert to fraction form
    2,733.66/4,101.20 = 786.02/x
  3. Step 3: Cross multiply
    2,733.66x = 4,101.20 × 786.02
  4. Step 4: Simplify right side
    2,733.66x = 3,223,600.79
  5. Step 5: Solve for x
    x = 3,223,600.79/2,733.66
  6. Step 6: Final answer
    x = 1,179.23

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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.