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Finding the Fourth Proportional to 13,183.91, 19,775.88 and 4,860.32

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Solution

The fourth proportional to 13,183.91, 19,775.88 and 4,860.32 is: 7,290.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.91 : 19,775.88 = 4,860.32 : x
  2. Step 2: Convert to fraction form
    13,183.91/19,775.88 = 4,860.32/x
  3. Step 3: Cross multiply
    13,183.91x = 19,775.88 × 4,860.32
  4. Step 4: Simplify right side
    13,183.91x = 96,117,105.08
  5. Step 5: Solve for x
    x = 96,117,105.08/13,183.91
  6. Step 6: Final answer
    x = 7,290.49

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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.