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Finding the Fourth Proportional to 3,612.94, 5,388.07 and 3,263.02

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Solution

The fourth proportional to 3,612.94, 5,388.07 and 3,263.02 is: 4,866.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,612.94 : 5,388.07 = 3,263.02 : x
  2. Step 2: Convert to fraction form
    3,612.94/5,388.07 = 3,263.02/x
  3. Step 3: Cross multiply
    3,612.94x = 5,388.07 × 3,263.02
  4. Step 4: Simplify right side
    3,612.94x = 17,581,380.17
  5. Step 5: Solve for x
    x = 17,581,380.17/3,612.94
  6. Step 6: Final answer
    x = 4,866.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.