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Finding the Fourth Proportional to 3,903.12, 5,823.36 and 3,717.36

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Solution

The fourth proportional to 3,903.12, 5,823.36 and 3,717.36 is: 5,546.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,903.12 : 5,823.36 = 3,717.36 : x
  2. Step 2: Convert to fraction form
    3,903.12/5,823.36 = 3,717.36/x
  3. Step 3: Cross multiply
    3,903.12x = 5,823.36 × 3,717.36
  4. Step 4: Simplify right side
    3,903.12x = 21,647,525.53
  5. Step 5: Solve for x
    x = 21,647,525.53/3,903.12
  6. Step 6: Final answer
    x = 5,546.21

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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.